221807975

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{8971}}^1$

素因数の和:9047

約数の個数: 24

約数和(自身を含む): 293707392

約数和(自身を除く): 71899417

約数列:

[1, 5, 23, 25, 43, 115, 215, 575, 989, 1075, 4945, 8971, 24725, 44855, 206333, 224275, 385753, 1031665, 1928765, 5158325, 8872319, 9643825, 44361595, 221807975]

約数ペア:

[(1, 221807975), (5, 44361595), (23, 9643825), (25, 8872319), (43, 5158325), (115, 1928765), (215, 1031665), (575, 385753), (989, 224275), (1075, 206333), (4945, 44855), (8971, 24725)]