20856862

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{229}}^1$

素因数の和:388

約数の個数: 32

約数和(自身を含む): 35239680

約数和(自身を除く): 14382818

約数列:

[1, 2, 13, 26, 31, 62, 113, 226, 229, 403, 458, 806, 1469, 2938, 2977, 3503, 5954, 7006, 7099, 14198, 25877, 45539, 51754, 91078, 92287, 184574, 336401, 672802, 802187, 1604374, 10428431, 20856862]

約数ペア:

[(1, 20856862), (2, 10428431), (13, 1604374), (26, 802187), (31, 672802), (62, 336401), (113, 184574), (226, 92287), (229, 91078), (403, 51754), (458, 45539), (806, 25877), (1469, 14198), (2938, 7099), (2977, 7006), (3503, 5954)]