20161567251

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{67049}}^1$

素因数の和:67145

約数の個数: 64

約数和(自身を含む): 35874432000

約数和(自身を除く): 15712864749

約数列:

[1, 3, 7, 9, 21, 27, 37, 43, 63, 111, 129, 189, 259, 301, 333, 387, 777, 903, 999, 1161, 1591, 2331, 2709, 4773, 6993, 8127, 11137, 14319, 33411, 42957, 67049, 100233, 201147, 300699, 469343, 603441, 1408029, 1810323, 2480813, 2883107, 4224087, 7442439, 8649321, 12672261, 17365691, 20181749, 22327317, 25947963, 52097073, 60545247, 66981951, 77843889, 106674959, 156291219, 181635741, 320024877, 468873657, 544907223, 746724713, 960074631, 2240174139, 2880223893, 6720522417, 20161567251]

約数ペア:

[(1, 20161567251), (3, 6720522417), (7, 2880223893), (9, 2240174139), (21, 960074631), (27, 746724713), (37, 544907223), (43, 468873657), (63, 320024877), (111, 181635741), (129, 156291219), (189, 106674959), (259, 77843889), (301, 66981951), (333, 60545247), (387, 52097073), (777, 25947963), (903, 22327317), (999, 20181749), (1161, 17365691), (1591, 12672261), (2331, 8649321), (2709, 7442439), (4773, 4224087), (6993, 2883107), (8127, 2480813), (11137, 1810323), (14319, 1408029), (33411, 603441), (42957, 469343), (67049, 300699), (100233, 201147)]