20587455

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{65357}}^1$

素因数の和:65375

約数の個数: 24

約数和(自身を含む): 40783392

約数和(自身を除く): 20195937

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 65357, 196071, 326785, 457499, 588213, 980355, 1372497, 2287495, 2941065, 4117491, 6862485, 20587455]

約数ペア:

[(1, 20587455), (3, 6862485), (5, 4117491), (7, 2941065), (9, 2287495), (15, 1372497), (21, 980355), (35, 588213), (45, 457499), (63, 326785), (105, 196071), (315, 65357)]