21941475

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{17209}}^1$

素因数の和:17239

約数の個数: 24

約数和(自身を含む): 38412720

約数和(自身を除く): 16471245

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 17209, 51627, 86045, 258135, 292553, 430225, 877659, 1290675, 1462765, 4388295, 7313825, 21941475]

約数ペア:

[(1, 21941475), (3, 7313825), (5, 4388295), (15, 1462765), (17, 1290675), (25, 877659), (51, 430225), (75, 292553), (85, 258135), (255, 86045), (425, 51627), (1275, 17209)]