20538225

素因数分解:

$3^3\times 5^2\times {\mathrm{30427}}^1$

素因数の和:30446

約数の個数: 24

約数和(自身を含む): 37730720

約数和(自身を除く): 17192495

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 30427, 91281, 152135, 273843, 456405, 760675, 821529, 1369215, 2282025, 4107645, 6846075, 20538225]

約数ペア:

[(1, 20538225), (3, 6846075), (5, 4107645), (9, 2282025), (15, 1369215), (25, 821529), (27, 760675), (45, 456405), (75, 273843), (135, 152135), (225, 91281), (675, 30427)]