19549904

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{983}}^1$

素因数の和:1115

約数の個数: 40

約数和(自身を含む): 41729472

約数和(自身を除く): 22179568

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 113, 176, 226, 452, 904, 983, 1243, 1808, 1966, 2486, 3932, 4972, 7864, 9944, 10813, 15728, 19888, 21626, 43252, 86504, 111079, 173008, 222158, 444316, 888632, 1221869, 1777264, 2443738, 4887476, 9774952, 19549904]

約数ペア:

[(1, 19549904), (2, 9774952), (4, 4887476), (8, 2443738), (11, 1777264), (16, 1221869), (22, 888632), (44, 444316), (88, 222158), (113, 173008), (176, 111079), (226, 86504), (452, 43252), (904, 21626), (983, 19888), (1243, 15728), (1808, 10813), (1966, 9944), (2486, 7864), (3932, 4972)]