21152768

素因数分解:

$2^{10}\times 7^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1$

素因数の和:267

約数の個数: 88

約数和(自身を含む): 52272192

約数和(自身を除く): 31119424

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 227, 256, 364, 416, 448, 454, 512, 728, 832, 896, 908, 1024, 1456, 1589, 1664, 1792, 1816, 2912, 2951, 3178, 3328, 3584, 3632, 5824, 5902, 6356, 6656, 7168, 7264, 11648, 11804, 12712, 13312, 14528, 20657, 23296, 23608, 25424, 29056, 41314, 46592, 47216, 50848, 58112, 82628, 93184, 94432, 101696, 116224, 165256, 188864, 203392, 232448, 330512, 377728, 406784, 661024, 755456, 813568, 1322048, 1510912, 1627136, 2644096, 3021824, 5288192, 10576384, 21152768]

約数ペア:

[(1, 21152768), (2, 10576384), (4, 5288192), (7, 3021824), (8, 2644096), (13, 1627136), (14, 1510912), (16, 1322048), (26, 813568), (28, 755456), (32, 661024), (52, 406784), (56, 377728), (64, 330512), (91, 232448), (104, 203392), (112, 188864), (128, 165256), (182, 116224), (208, 101696), (224, 94432), (227, 93184), (256, 82628), (364, 58112), (416, 50848), (448, 47216), (454, 46592), (512, 41314), (728, 29056), (832, 25424), (896, 23608), (908, 23296), (1024, 20657), (1456, 14528), (1589, 13312), (1664, 12712), (1792, 11804), (1816, 11648), (2912, 7264), (2951, 7168), (3178, 6656), (3328, 6356), (3584, 5902), (3632, 5824)]