20415527

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{487}}^1$

素因数の和:638

約数の個数: 16

約数和(自身を含む): 23142912

約数和(自身を除く): 2727385

約数列:

[1, 11, 37, 103, 407, 487, 1133, 3811, 5357, 18019, 41921, 50161, 198209, 551771, 1855957, 20415527]

約数ペア:

[(1, 20415527), (11, 1855957), (37, 551771), (103, 198209), (407, 50161), (487, 41921), (1133, 18019), (3811, 5357)]