220561515

素因数分解:

$3^3\times 5^1\times {\mathrm{1633789}}^1$

素因数の和:1633803

約数の個数: 16

約数和(自身を含む): 392109600

約数和(自身を除く): 171548085

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1633789, 4901367, 8168945, 14704101, 24506835, 44112303, 73520505, 220561515]

約数ペア:

[(1, 220561515), (3, 73520505), (5, 44112303), (9, 24506835), (15, 14704101), (27, 8168945), (45, 4901367), (135, 1633789)]