21779510

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1451}}^1$

素因数の和:1556

約数の個数: 32

約数和(自身を含む): 41817600

約数和(自身を除く): 20038090

約数列:

[1, 2, 5, 10, 19, 38, 79, 95, 158, 190, 395, 790, 1451, 1501, 2902, 3002, 7255, 7505, 14510, 15010, 27569, 55138, 114629, 137845, 229258, 275690, 573145, 1146290, 2177951, 4355902, 10889755, 21779510]

約数ペア:

[(1, 21779510), (2, 10889755), (5, 4355902), (10, 2177951), (19, 1146290), (38, 573145), (79, 275690), (95, 229258), (158, 137845), (190, 114629), (395, 55138), (790, 27569), (1451, 15010), (1501, 14510), (2902, 7505), (3002, 7255)]