21266504

素因数分解:

$2^3\times 7^1\times {\mathrm{307}}^1\times {\mathrm{1237}}^1$

素因数の和:1557

約数の個数: 32

約数和(自身を含む): 45756480

約数和(自身を除く): 24489976

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 307, 614, 1228, 1237, 2149, 2456, 2474, 4298, 4948, 8596, 8659, 9896, 17192, 17318, 34636, 69272, 379759, 759518, 1519036, 2658313, 3038072, 5316626, 10633252, 21266504]

約数ペア:

[(1, 21266504), (2, 10633252), (4, 5316626), (7, 3038072), (8, 2658313), (14, 1519036), (28, 759518), (56, 379759), (307, 69272), (614, 34636), (1228, 17318), (1237, 17192), (2149, 9896), (2456, 8659), (2474, 8596), (4298, 4948)]