221528394

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{723949}}^1$

素因数の和:723974

約数の個数: 24

約数和(自身を含む): 508212900

約数和(自身を除く): 286684506

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306, 723949, 1447898, 2171847, 4343694, 6515541, 12307133, 13031082, 24614266, 36921399, 73842798, 110764197, 221528394]

約数ペア:

[(1, 221528394), (2, 110764197), (3, 73842798), (6, 36921399), (9, 24614266), (17, 13031082), (18, 12307133), (34, 6515541), (51, 4343694), (102, 2171847), (153, 1447898), (306, 723949)]