20357948

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 40379136

約数和(自身を除く): 20021188

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 73, 124, 146, 173, 292, 346, 403, 692, 806, 949, 1612, 1898, 2249, 2263, 3796, 4498, 4526, 5363, 8996, 9052, 10726, 12629, 21452, 25258, 29419, 50516, 58838, 69719, 117676, 139438, 164177, 278876, 328354, 391499, 656708, 782998, 1565996, 5089487, 10178974, 20357948]

約数ペア:

[(1, 20357948), (2, 10178974), (4, 5089487), (13, 1565996), (26, 782998), (31, 656708), (52, 391499), (62, 328354), (73, 278876), (124, 164177), (146, 139438), (173, 117676), (292, 69719), (346, 58838), (403, 50516), (692, 29419), (806, 25258), (949, 21452), (1612, 12629), (1898, 10726), (2249, 9052), (2263, 8996), (3796, 5363), (4498, 4526)]