20921241628

素因数分解:

$2^2\times 7^1\times {\mathrm{747187201}}^1$

素因数の和:747187212

約数の個数: 12

約数和(自身を含む): 41842483312

約数和(自身を除く): 20921241684

約数列:

[1, 2, 4, 7, 14, 28, 747187201, 1494374402, 2988748804, 5230310407, 10460620814, 20921241628]

約数ペア:

[(1, 20921241628), (2, 10460620814), (4, 5230310407), (7, 2988748804), (14, 1494374402), (28, 747187201)]