21197056

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{2671}}^1$

素因数の和:2718

約数の個数: 36

約数和(自身を含む): 43692544

約数和(自身を除く): 22495488

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 992, 1984, 2671, 3968, 5342, 7936, 10684, 21368, 42736, 82801, 85472, 165602, 170944, 331204, 341888, 662408, 683776, 1324816, 2649632, 5299264, 10598528, 21197056]

約数ペア:

[(1, 21197056), (2, 10598528), (4, 5299264), (8, 2649632), (16, 1324816), (31, 683776), (32, 662408), (62, 341888), (64, 331204), (124, 170944), (128, 165602), (248, 85472), (256, 82801), (496, 42736), (992, 21368), (1984, 10684), (2671, 7936), (3968, 5342)]