64885815

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{21521}}^1$

素因数の和:21599

約数の個数: 24

約数和(自身を含む): 114152688

約数和(自身を除く): 49266873

約数列:

[1, 3, 5, 9, 15, 45, 67, 201, 335, 603, 1005, 3015, 21521, 64563, 107605, 193689, 322815, 968445, 1441907, 4325721, 7209535, 12977163, 21628605, 64885815]

約数ペア:

[(1, 64885815), (3, 21628605), (5, 12977163), (9, 7209535), (15, 4325721), (45, 1441907), (67, 968445), (201, 322815), (335, 193689), (603, 107605), (1005, 64563), (3015, 21521)]