20129385

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{593}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 33758208

約数和(自身を除く): 13628823

約数列:

[1, 3, 5, 15, 31, 73, 93, 155, 219, 365, 465, 593, 1095, 1779, 2263, 2965, 6789, 8895, 11315, 18383, 33945, 43289, 55149, 91915, 129867, 216445, 275745, 649335, 1341959, 4025877, 6709795, 20129385]

約数ペア:

[(1, 20129385), (3, 6709795), (5, 4025877), (15, 1341959), (31, 649335), (73, 275745), (93, 216445), (155, 129867), (219, 91915), (365, 55149), (465, 43289), (593, 33945), (1095, 18383), (1779, 11315), (2263, 8895), (2965, 6789)]