19641856

素因数分解:

$2^9\times {\mathrm{13}}^2\times {\mathrm{227}}^1$

素因数の和:271

約数の個数: 60

約数和(自身を含む): 42683652

約数和(自身を除く): 23041796

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 169, 208, 227, 256, 338, 416, 454, 512, 676, 832, 908, 1352, 1664, 1816, 2704, 2951, 3328, 3632, 5408, 5902, 6656, 7264, 10816, 11804, 14528, 21632, 23608, 29056, 38363, 43264, 47216, 58112, 76726, 86528, 94432, 116224, 153452, 188864, 306904, 377728, 613808, 755456, 1227616, 1510912, 2455232, 4910464, 9820928, 19641856]

約数ペア:

[(1, 19641856), (2, 9820928), (4, 4910464), (8, 2455232), (13, 1510912), (16, 1227616), (26, 755456), (32, 613808), (52, 377728), (64, 306904), (104, 188864), (128, 153452), (169, 116224), (208, 94432), (227, 86528), (256, 76726), (338, 58112), (416, 47216), (454, 43264), (512, 38363), (676, 29056), (832, 23608), (908, 21632), (1352, 14528), (1664, 11804), (1816, 10816), (2704, 7264), (2951, 6656), (3328, 5902), (3632, 5408)]