221513535

素因数分解:

$3^4\times 5^1\times {\mathrm{546947}}^1$

素因数の和:546964

約数の個数: 20

約数和(自身を含む): 397084248

約数和(自身を除く): 175570713

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 546947, 1640841, 2734735, 4922523, 8204205, 14767569, 24612615, 44302707, 73837845, 221513535]

約数ペア:

[(1, 221513535), (3, 73837845), (5, 44302707), (9, 24612615), (15, 14767569), (27, 8204205), (45, 4922523), (81, 2734735), (135, 1640841), (405, 546947)]