21890948

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{1229}}^1$

素因数の和:1367

約数の個数: 24

約数和(自身を含む): 39502680

約数和(自身を除く): 17611732

約数列:

[1, 2, 4, 61, 73, 122, 146, 244, 292, 1229, 2458, 4453, 4916, 8906, 17812, 74969, 89717, 149938, 179434, 299876, 358868, 5472737, 10945474, 21890948]

約数ペア:

[(1, 21890948), (2, 10945474), (4, 5472737), (61, 358868), (73, 299876), (122, 179434), (146, 149938), (244, 89717), (292, 74969), (1229, 17812), (2458, 8906), (4453, 4916)]