18997784

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{6299}}^1$

素因数の和:6347

約数の個数: 32

約数和(自身を含む): 39690000

約数和(自身を除く): 20692216

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 104, 116, 232, 377, 754, 1508, 3016, 6299, 12598, 25196, 50392, 81887, 163774, 182671, 327548, 365342, 655096, 730684, 1461368, 2374723, 4749446, 9498892, 18997784]

約数ペア:

[(1, 18997784), (2, 9498892), (4, 4749446), (8, 2374723), (13, 1461368), (26, 730684), (29, 655096), (52, 365342), (58, 327548), (104, 182671), (116, 163774), (232, 81887), (377, 50392), (754, 25196), (1508, 12598), (3016, 6299)]