21245280

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{6323}}^1$

素因数の和:6348

約数の個数: 96

約数和(自身を含む): 76495104

約数和(自身を除く): 55249824

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, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 280, 336, 420, 480, 560, 672, 840, 1120, 1680, 3360, 6323, 12646, 18969, 25292, 31615, 37938, 44261, 50584, 63230, 75876, 88522, 94845, 101168, 126460, 132783, 151752, 177044, 189690, 202336, 221305, 252920, 265566, 303504, 354088, 379380, 442610, 505840, 531132, 607008, 663915, 708176, 758760, 885220, 1011680, 1062264, 1327830, 1416352, 1517520, 1770440, 2124528, 2655660, 3035040, 3540880, 4249056, 5311320, 7081760, 10622640, 21245280]

約数ペア:

[(1, 21245280), (2, 10622640), (3, 7081760), (4, 5311320), (5, 4249056), (6, 3540880), (7, 3035040), (8, 2655660), (10, 2124528), (12, 1770440), (14, 1517520), (15, 1416352), (16, 1327830), (20, 1062264), (21, 1011680), (24, 885220), (28, 758760), (30, 708176), (32, 663915), (35, 607008), (40, 531132), (42, 505840), (48, 442610), (56, 379380), (60, 354088), (70, 303504), (80, 265566), (84, 252920), (96, 221305), (105, 202336), (112, 189690), (120, 177044), (140, 151752), (160, 132783), (168, 126460), (210, 101168), (224, 94845), (240, 88522), (280, 75876), (336, 63230), (420, 50584), (480, 44261), (560, 37938), (672, 31615), (840, 25292), (1120, 18969), (1680, 12646), (3360, 6323)]