21845765

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{1637}}^1$

素因数の和:1816

約数の個数: 16

約数和(自身を含む): 27950832

約数和(自身を除く): 6105067

約数列:

[1, 5, 17, 85, 157, 785, 1637, 2669, 8185, 13345, 27829, 139145, 257009, 1285045, 4369153, 21845765]

約数ペア:

[(1, 21845765), (5, 4369153), (17, 1285045), (85, 257009), (157, 139145), (785, 27829), (1637, 13345), (2669, 8185)]