18880974724

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{1987}}^1\times {\mathrm{139739}}^1$

素因数の和:141747

約数の個数: 24

約数和(自身を含む): 35003193120

約数和(自身を除く): 16122218396

約数列:

[1, 2, 4, 17, 34, 68, 1987, 3974, 7948, 33779, 67558, 135116, 139739, 279478, 558956, 2375563, 4751126, 9502252, 277661393, 555322786, 1110645572, 4720243681, 9440487362, 18880974724]

約数ペア:

[(1, 18880974724), (2, 9440487362), (4, 4720243681), (17, 1110645572), (34, 555322786), (68, 277661393), (1987, 9502252), (3974, 4751126), (7948, 2375563), (33779, 558956), (67558, 279478), (135116, 139739)]