21195544

素因数分解:

$2^3\times {\mathrm{83}}^1\times {\mathrm{137}}^1\times {\mathrm{233}}^1$

素因数の和:459

約数の個数: 32

約数和(自身を含む): 40687920

約数和(自身を除く): 19492376

約数列:

[1, 2, 4, 8, 83, 137, 166, 233, 274, 332, 466, 548, 664, 932, 1096, 1864, 11371, 19339, 22742, 31921, 38678, 45484, 63842, 77356, 90968, 127684, 154712, 255368, 2649443, 5298886, 10597772, 21195544]

約数ペア:

[(1, 21195544), (2, 10597772), (4, 5298886), (8, 2649443), (83, 255368), (137, 154712), (166, 127684), (233, 90968), (274, 77356), (332, 63842), (466, 45484), (548, 38678), (664, 31921), (932, 22742), (1096, 19339), (1864, 11371)]