18797636

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{557}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 39372480

約数和(自身を除く): 20574844

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 59, 118, 143, 236, 286, 557, 572, 649, 767, 1114, 1298, 1534, 2228, 2596, 3068, 6127, 7241, 8437, 12254, 14482, 16874, 24508, 28964, 32863, 33748, 65726, 79651, 131452, 159302, 318604, 361493, 427219, 722986, 854438, 1445972, 1708876, 4699409, 9398818, 18797636]

約数ペア:

[(1, 18797636), (2, 9398818), (4, 4699409), (11, 1708876), (13, 1445972), (22, 854438), (26, 722986), (44, 427219), (52, 361493), (59, 318604), (118, 159302), (143, 131452), (236, 79651), (286, 65726), (557, 33748), (572, 32863), (649, 28964), (767, 24508), (1114, 16874), (1298, 14482), (1534, 12254), (2228, 8437), (2596, 7241), (3068, 6127)]