17964848

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{991}}^1$

素因数の和:1113

約数の個数: 40

約数和(自身を含む): 38378496

約数和(自身を除く): 20413648

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 103, 176, 206, 412, 824, 991, 1133, 1648, 1982, 2266, 3964, 4532, 7928, 9064, 10901, 15856, 18128, 21802, 43604, 87208, 102073, 174416, 204146, 408292, 816584, 1122803, 1633168, 2245606, 4491212, 8982424, 17964848]

約数ペア:

[(1, 17964848), (2, 8982424), (4, 4491212), (8, 2245606), (11, 1633168), (16, 1122803), (22, 816584), (44, 408292), (88, 204146), (103, 174416), (176, 102073), (206, 87208), (412, 43604), (824, 21802), (991, 18128), (1133, 15856), (1648, 10901), (1982, 9064), (2266, 7928), (3964, 4532)]