21356160

素因数分解:

$2^7\times 3^1\times 5^1\times 7^2\times {\mathrm{227}}^1$

素因数の和:263

約数の個数: 192

約数和(自身を含む): 79535520

約数和(自身を除く): 58179360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 128, 140, 147, 160, 168, 192, 196, 210, 224, 227, 240, 245, 280, 294, 320, 336, 384, 392, 420, 448, 454, 480, 490, 560, 588, 640, 672, 681, 735, 784, 840, 896, 908, 960, 980, 1120, 1135, 1176, 1344, 1362, 1470, 1568, 1589, 1680, 1816, 1920, 1960, 2240, 2270, 2352, 2688, 2724, 2940, 3136, 3178, 3360, 3405, 3632, 3920, 4480, 4540, 4704, 4767, 5448, 5880, 6272, 6356, 6720, 6810, 7264, 7840, 7945, 9080, 9408, 9534, 10896, 11123, 11760, 12712, 13440, 13620, 14528, 15680, 15890, 18160, 18816, 19068, 21792, 22246, 23520, 23835, 25424, 27240, 29056, 31360, 31780, 33369, 36320, 38136, 43584, 44492, 47040, 47670, 50848, 54480, 55615, 63560, 66738, 72640, 76272, 87168, 88984, 94080, 95340, 101696, 108960, 111230, 127120, 133476, 145280, 152544, 166845, 177968, 190680, 203392, 217920, 222460, 254240, 266952, 305088, 333690, 355936, 381360, 435840, 444920, 508480, 533904, 610176, 667380, 711872, 762720, 889840, 1016960, 1067808, 1334760, 1423744, 1525440, 1779680, 2135616, 2669520, 3050880, 3559360, 4271232, 5339040, 7118720, 10678080, 21356160]

約数ペア:

[(1, 21356160), (2, 10678080), (3, 7118720), (4, 5339040), (5, 4271232), (6, 3559360), (7, 3050880), (8, 2669520), (10, 2135616), (12, 1779680), (14, 1525440), (15, 1423744), (16, 1334760), (20, 1067808), (21, 1016960), (24, 889840), (28, 762720), (30, 711872), (32, 667380), (35, 610176), (40, 533904), (42, 508480), (48, 444920), (49, 435840), (56, 381360), (60, 355936), (64, 333690), (70, 305088), (80, 266952), (84, 254240), (96, 222460), (98, 217920), (105, 203392), (112, 190680), (120, 177968), (128, 166845), (140, 152544), (147, 145280), (160, 133476), (168, 127120), (192, 111230), (196, 108960), (210, 101696), (224, 95340), (227, 94080), (240, 88984), (245, 87168), (280, 76272), (294, 72640), (320, 66738), (336, 63560), (384, 55615), (392, 54480), (420, 50848), (448, 47670), (454, 47040), (480, 44492), (490, 43584), (560, 38136), (588, 36320), (640, 33369), (672, 31780), (681, 31360), (735, 29056), (784, 27240), (840, 25424), (896, 23835), (908, 23520), (960, 22246), (980, 21792), (1120, 19068), (1135, 18816), (1176, 18160), (1344, 15890), (1362, 15680), (1470, 14528), (1568, 13620), (1589, 13440), (1680, 12712), (1816, 11760), (1920, 11123), (1960, 10896), (2240, 9534), (2270, 9408), (2352, 9080), (2688, 7945), (2724, 7840), (2940, 7264), (3136, 6810), (3178, 6720), (3360, 6356), (3405, 6272), (3632, 5880), (3920, 5448), (4480, 4767), (4540, 4704)]