209868705

素因数分解:

$3^3\times 5^1\times {\mathrm{1554583}}^1$

素因数の和:1554597

約数の個数: 16

約数和(自身を含む): 373100160

約数和(自身を除く): 163231455

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1554583, 4663749, 7772915, 13991247, 23318745, 41973741, 69956235, 209868705]

約数ペア:

[(1, 209868705), (3, 69956235), (5, 41973741), (9, 23318745), (15, 13991247), (27, 7772915), (45, 4663749), (135, 1554583)]