21060610

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{503}}^1$

素因数の和:642

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 18130430

約数列:

[1, 2, 5, 10, 53, 79, 106, 158, 265, 395, 503, 530, 790, 1006, 2515, 4187, 5030, 8374, 20935, 26659, 39737, 41870, 53318, 79474, 133295, 198685, 266590, 397370, 2106061, 4212122, 10530305, 21060610]

約数ペア:

[(1, 21060610), (2, 10530305), (5, 4212122), (10, 2106061), (53, 397370), (79, 266590), (106, 198685), (158, 133295), (265, 79474), (395, 53318), (503, 41870), (530, 39737), (790, 26659), (1006, 20935), (2515, 8374), (4187, 5030)]