20171357451

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{47287}}^1$

素因数の和:47401

約数の個数: 64

約数和(自身を含む): 35651368960

約数和(自身を除く): 15480011509

約数列:

[1, 3, 7, 9, 21, 27, 37, 61, 63, 111, 183, 189, 259, 333, 427, 549, 777, 999, 1281, 1647, 2257, 2331, 3843, 6771, 6993, 11529, 15799, 20313, 47287, 47397, 60939, 141861, 142191, 331009, 425583, 426573, 993027, 1276749, 1749619, 2884507, 2979081, 5248857, 8653521, 8937243, 12247333, 15746571, 20191549, 25960563, 36741999, 47239713, 60574647, 77881689, 106726759, 110225997, 181723941, 320180277, 330677991, 545171823, 747087313, 960540831, 2241261939, 2881622493, 6723785817, 20171357451]

約数ペア:

[(1, 20171357451), (3, 6723785817), (7, 2881622493), (9, 2241261939), (21, 960540831), (27, 747087313), (37, 545171823), (61, 330677991), (63, 320180277), (111, 181723941), (183, 110225997), (189, 106726759), (259, 77881689), (333, 60574647), (427, 47239713), (549, 36741999), (777, 25960563), (999, 20191549), (1281, 15746571), (1647, 12247333), (2257, 8937243), (2331, 8653521), (3843, 5248857), (6771, 2979081), (6993, 2884507), (11529, 1749619), (15799, 1276749), (20313, 993027), (47287, 426573), (47397, 425583), (60939, 331009), (141861, 142191)]