20885235

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{449}}^1$

素因数の和:907

約数の個数: 32

約数和(自身を含む): 38361600

約数和(自身を除く): 17476365

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 443, 449, 1329, 1347, 2215, 2245, 3101, 3143, 6645, 6735, 9303, 9429, 15505, 15715, 46515, 47145, 198907, 596721, 994535, 1392349, 2983605, 4177047, 6961745, 20885235]

約数ペア:

[(1, 20885235), (3, 6961745), (5, 4177047), (7, 2983605), (15, 1392349), (21, 994535), (35, 596721), (105, 198907), (443, 47145), (449, 46515), (1329, 15715), (1347, 15505), (2215, 9429), (2245, 9303), (3101, 6735), (3143, 6645)]