18203408

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{317}}^1$

素因数の和:459

約数の個数: 40

約数和(自身を含む): 36711192

約数和(自身を除く): 18507784

約数列:

[1, 2, 4, 8, 16, 37, 74, 97, 148, 194, 296, 317, 388, 592, 634, 776, 1268, 1552, 2536, 3589, 5072, 7178, 11729, 14356, 23458, 28712, 30749, 46916, 57424, 61498, 93832, 122996, 187664, 245992, 491984, 1137713, 2275426, 4550852, 9101704, 18203408]

約数ペア:

[(1, 18203408), (2, 9101704), (4, 4550852), (8, 2275426), (16, 1137713), (37, 491984), (74, 245992), (97, 187664), (148, 122996), (194, 93832), (296, 61498), (317, 57424), (388, 46916), (592, 30749), (634, 28712), (776, 23458), (1268, 14356), (1552, 11729), (2536, 7178), (3589, 5072)]