18880664

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{5233}}^1$

素因数の和:5291

約数の個数: 32

約数和(自身を含む): 39569040

約数和(自身を除く): 20688376

約数列:

[1, 2, 4, 8, 11, 22, 41, 44, 82, 88, 164, 328, 451, 902, 1804, 3608, 5233, 10466, 20932, 41864, 57563, 115126, 214553, 230252, 429106, 460504, 858212, 1716424, 2360083, 4720166, 9440332, 18880664]

約数ペア:

[(1, 18880664), (2, 9440332), (4, 4720166), (8, 2360083), (11, 1716424), (22, 858212), (41, 460504), (44, 429106), (82, 230252), (88, 214553), (164, 115126), (328, 57563), (451, 41864), (902, 20932), (1804, 10466), (3608, 5233)]