208357785

素因数分解:

$3^3\times 5^1\times {\mathrm{1543391}}^1$

素因数の和:1543405

約数の個数: 16

約数和(自身を含む): 370414080

約数和(自身を除く): 162056295

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1543391, 4630173, 7716955, 13890519, 23150865, 41671557, 69452595, 208357785]

約数ペア:

[(1, 208357785), (3, 69452595), (5, 41671557), (9, 23150865), (15, 13890519), (27, 7716955), (45, 4630173), (135, 1543391)]