20651115

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{499}}^1$

素因数の和:627

約数の個数: 32

約数和(自身を含む): 34560000

約数和(自身を除く): 13908885

約数列:

[1, 3, 5, 15, 31, 89, 93, 155, 267, 445, 465, 499, 1335, 1497, 2495, 2759, 7485, 8277, 13795, 15469, 41385, 44411, 46407, 77345, 133233, 222055, 232035, 666165, 1376741, 4130223, 6883705, 20651115]

約数ペア:

[(1, 20651115), (3, 6883705), (5, 4130223), (15, 1376741), (31, 666165), (89, 232035), (93, 222055), (155, 133233), (267, 77345), (445, 46407), (465, 44411), (499, 41385), (1335, 15469), (1497, 13795), (2495, 8277), (2759, 7485)]