20161255779

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1\times {\mathrm{4831}}^1$

素因数の和:5229

約数の個数: 64

約数和(自身を含む): 34734735360

約数和(自身を除く): 14573479581

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 189, 213, 311, 497, 639, 933, 1491, 1917, 2177, 2799, 4473, 4831, 6531, 8397, 13419, 14493, 19593, 22081, 33817, 43479, 58779, 66243, 101451, 130437, 154567, 198729, 304353, 343001, 463701, 596187, 913059, 1029003, 1391103, 1502441, 2401007, 3087009, 4173309, 4507323, 7203021, 9261027, 10517087, 13521969, 21609063, 31551261, 40565907, 64827189, 94653783, 106673311, 283961349, 320019933, 746713177, 960059799, 2240139531, 2880179397, 6720418593, 20161255779]

約数ペア:

[(1, 20161255779), (3, 6720418593), (7, 2880179397), (9, 2240139531), (21, 960059799), (27, 746713177), (63, 320019933), (71, 283961349), (189, 106673311), (213, 94653783), (311, 64827189), (497, 40565907), (639, 31551261), (933, 21609063), (1491, 13521969), (1917, 10517087), (2177, 9261027), (2799, 7203021), (4473, 4507323), (4831, 4173309), (6531, 3087009), (8397, 2401007), (13419, 1502441), (14493, 1391103), (19593, 1029003), (22081, 913059), (33817, 596187), (43479, 463701), (58779, 343001), (66243, 304353), (101451, 198729), (130437, 154567)]