20617641

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 34856640

約数和(自身を除く): 14238999

約数列:

[1, 3, 9, 11, 19, 33, 57, 97, 99, 113, 171, 209, 291, 339, 627, 873, 1017, 1067, 1243, 1843, 1881, 2147, 3201, 3729, 5529, 6441, 9603, 10961, 11187, 16587, 19323, 20273, 23617, 32883, 60819, 70851, 98649, 120571, 182457, 208259, 212553, 361713, 624777, 1085139, 1874331, 2290849, 6872547, 20617641]

約数ペア:

[(1, 20617641), (3, 6872547), (9, 2290849), (11, 1874331), (19, 1085139), (33, 624777), (57, 361713), (97, 212553), (99, 208259), (113, 182457), (171, 120571), (209, 98649), (291, 70851), (339, 60819), (627, 32883), (873, 23617), (1017, 20273), (1067, 19323), (1243, 16587), (1843, 11187), (1881, 10961), (2147, 9603), (3201, 6441), (3729, 5529)]