18796648

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1213}}^1$

素因数の和:1381

約数の個数: 32

約数和(自身を含む): 38241000

約数和(自身を除く): 19444352

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 149, 298, 596, 1192, 1213, 1937, 2426, 3874, 4852, 7748, 9704, 15496, 15769, 31538, 63076, 126152, 180737, 361474, 722948, 1445896, 2349581, 4699162, 9398324, 18796648]

約数ペア:

[(1, 18796648), (2, 9398324), (4, 4699162), (8, 2349581), (13, 1445896), (26, 722948), (52, 361474), (104, 180737), (149, 126152), (298, 63076), (596, 31538), (1192, 15769), (1213, 15496), (1937, 9704), (2426, 7748), (3874, 4852)]