20923736

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{1123}}^1$

素因数の和:1283

約数の個数: 32

約数和(自身を含む): 41880240

約数和(自身を除く): 20956504

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 137, 274, 548, 1096, 1123, 2246, 2329, 4492, 4658, 8984, 9316, 18632, 19091, 38182, 76364, 152728, 153851, 307702, 615404, 1230808, 2615467, 5230934, 10461868, 20923736]

約数ペア:

[(1, 20923736), (2, 10461868), (4, 5230934), (8, 2615467), (17, 1230808), (34, 615404), (68, 307702), (136, 153851), (137, 152728), (274, 76364), (548, 38182), (1096, 19091), (1123, 18632), (2246, 9316), (2329, 8984), (4492, 4658)]