21260928

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{4259}}^1$

素因数の和:4289

約数の個数: 64

約数和(自身を含む): 60832800

約数和(自身を除く): 39571872

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 128, 156, 192, 208, 312, 384, 416, 624, 832, 1248, 1664, 2496, 4259, 4992, 8518, 12777, 17036, 25554, 34072, 51108, 55367, 68144, 102216, 110734, 136288, 166101, 204432, 221468, 272576, 332202, 408864, 442936, 545152, 664404, 817728, 885872, 1328808, 1635456, 1771744, 2657616, 3543488, 5315232, 7086976, 10630464, 21260928]

約数ペア:

[(1, 21260928), (2, 10630464), (3, 7086976), (4, 5315232), (6, 3543488), (8, 2657616), (12, 1771744), (13, 1635456), (16, 1328808), (24, 885872), (26, 817728), (32, 664404), (39, 545152), (48, 442936), (52, 408864), (64, 332202), (78, 272576), (96, 221468), (104, 204432), (128, 166101), (156, 136288), (192, 110734), (208, 102216), (312, 68144), (384, 55367), (416, 51108), (624, 34072), (832, 25554), (1248, 17036), (1664, 12777), (2496, 8518), (4259, 4992)]