21019266

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{16447}}^1$

素因数の和:16526

約数の個数: 24

約数和(自身を含む): 46185984

約数和(自身を除く): 25166718

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 16447, 32894, 49341, 98682, 148023, 296046, 1167737, 2335474, 3503211, 7006422, 10509633, 21019266]

約数ペア:

[(1, 21019266), (2, 10509633), (3, 7006422), (6, 3503211), (9, 2335474), (18, 1167737), (71, 296046), (142, 148023), (213, 98682), (426, 49341), (639, 32894), (1278, 16447)]