21207804976

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{32328971}}^1$

素因数の和:32329020

約数の個数: 20

約数和(自身を含む): 42092321544

約数和(自身を除く): 20884516568

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 32328971, 64657942, 129315884, 258631768, 517263536, 1325487811, 2650975622, 5301951244, 10603902488, 21207804976]

約数ペア:

[(1, 21207804976), (2, 10603902488), (4, 5301951244), (8, 2650975622), (16, 1325487811), (41, 517263536), (82, 258631768), (164, 129315884), (328, 64657942), (656, 32328971)]