20655102

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:493

約数の個数: 64

約数和(自身を含む): 48492864

約数和(自身を除く): 27837762

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 37, 39, 51, 74, 78, 102, 111, 221, 222, 421, 442, 481, 629, 663, 842, 962, 1258, 1263, 1326, 1443, 1887, 2526, 2886, 3774, 5473, 7157, 8177, 10946, 14314, 15577, 16354, 16419, 21471, 24531, 31154, 32838, 42942, 46731, 49062, 93041, 93462, 186082, 202501, 264809, 279123, 405002, 529618, 558246, 607503, 794427, 1215006, 1588854, 3442517, 6885034, 10327551, 20655102]

約数ペア:

[(1, 20655102), (2, 10327551), (3, 6885034), (6, 3442517), (13, 1588854), (17, 1215006), (26, 794427), (34, 607503), (37, 558246), (39, 529618), (51, 405002), (74, 279123), (78, 264809), (102, 202501), (111, 186082), (221, 93462), (222, 93041), (421, 49062), (442, 46731), (481, 42942), (629, 32838), (663, 31154), (842, 24531), (962, 21471), (1258, 16419), (1263, 16354), (1326, 15577), (1443, 14314), (1887, 10946), (2526, 8177), (2886, 7157), (3774, 5473)]