21287616

素因数分解:

$2^6\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{337}}^1$

素因数の和:406

約数の個数: 112

約数和(自身を含む): 65934336

約数和(自身を除く): 44646720

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 47, 48, 56, 64, 84, 94, 96, 112, 141, 168, 188, 192, 224, 282, 329, 336, 337, 376, 448, 564, 658, 672, 674, 752, 987, 1011, 1128, 1316, 1344, 1348, 1504, 1974, 2022, 2256, 2359, 2632, 2696, 3008, 3948, 4044, 4512, 4718, 5264, 5392, 7077, 7896, 8088, 9024, 9436, 10528, 10784, 14154, 15792, 15839, 16176, 18872, 21056, 21568, 28308, 31584, 31678, 32352, 37744, 47517, 56616, 63168, 63356, 64704, 75488, 95034, 110873, 113232, 126712, 150976, 190068, 221746, 226464, 253424, 332619, 380136, 443492, 452928, 506848, 665238, 760272, 886984, 1013696, 1330476, 1520544, 1773968, 2660952, 3041088, 3547936, 5321904, 7095872, 10643808, 21287616]

約数ペア:

[(1, 21287616), (2, 10643808), (3, 7095872), (4, 5321904), (6, 3547936), (7, 3041088), (8, 2660952), (12, 1773968), (14, 1520544), (16, 1330476), (21, 1013696), (24, 886984), (28, 760272), (32, 665238), (42, 506848), (47, 452928), (48, 443492), (56, 380136), (64, 332619), (84, 253424), (94, 226464), (96, 221746), (112, 190068), (141, 150976), (168, 126712), (188, 113232), (192, 110873), (224, 95034), (282, 75488), (329, 64704), (336, 63356), (337, 63168), (376, 56616), (448, 47517), (564, 37744), (658, 32352), (672, 31678), (674, 31584), (752, 28308), (987, 21568), (1011, 21056), (1128, 18872), (1316, 16176), (1344, 15839), (1348, 15792), (1504, 14154), (1974, 10784), (2022, 10528), (2256, 9436), (2359, 9024), (2632, 8088), (2696, 7896), (3008, 7077), (3948, 5392), (4044, 5264), (4512, 4718)]