201553065

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{639851}}^1$

素因数の和:639869

約数の個数: 24

約数和(自身を含む): 399267648

約数和(自身を除く): 197714583

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 639851, 1919553, 3199255, 4478957, 5758659, 9597765, 13436871, 22394785, 28793295, 40310613, 67184355, 201553065]

約数ペア:

[(1, 201553065), (3, 67184355), (5, 40310613), (7, 28793295), (9, 22394785), (15, 13436871), (21, 9597765), (35, 5758659), (45, 4478957), (63, 3199255), (105, 1919553), (315, 639851)]