20601918

素因数分解:

$2^1\times 3^3\times {\mathrm{31}}^2\times {\mathrm{397}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 47425680

約数和(自身を除く): 26823762

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 93, 186, 279, 397, 558, 794, 837, 961, 1191, 1674, 1922, 2382, 2883, 3573, 5766, 7146, 8649, 10719, 12307, 17298, 21438, 24614, 25947, 36921, 51894, 73842, 110763, 221526, 332289, 381517, 664578, 763034, 1144551, 2289102, 3433653, 6867306, 10300959, 20601918]

約数ペア:

[(1, 20601918), (2, 10300959), (3, 6867306), (6, 3433653), (9, 2289102), (18, 1144551), (27, 763034), (31, 664578), (54, 381517), (62, 332289), (93, 221526), (186, 110763), (279, 73842), (397, 51894), (558, 36921), (794, 25947), (837, 24614), (961, 21438), (1191, 17298), (1674, 12307), (1922, 10719), (2382, 8649), (2883, 7146), (3573, 5766)]