21638475

素因数分解:

$3^3\times 5^2\times {\mathrm{32057}}^1$

素因数の和:32076

約数の個数: 24

約数和(自身を含む): 39751920

約数和(自身を除く): 18113445

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 32057, 96171, 160285, 288513, 480855, 801425, 865539, 1442565, 2404275, 4327695, 7212825, 21638475]

約数ペア:

[(1, 21638475), (3, 7212825), (5, 4327695), (9, 2404275), (15, 1442565), (25, 865539), (27, 801425), (45, 480855), (75, 288513), (135, 160285), (225, 96171), (675, 32057)]