20215702101

素因数分解:

$3^1\times 7^4\times {\mathrm{43}}^1\times {\mathrm{65269}}^1$

素因数の和:65343

約数の個数: 40

約数和(自身を含む): 32176543520

約数和(自身を除く): 11960841419

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 343, 903, 1029, 2107, 2401, 6321, 7203, 14749, 44247, 65269, 103243, 195807, 309729, 456883, 1370649, 2806567, 3198181, 8419701, 9594543, 19645969, 22387267, 58937907, 67161801, 137521783, 156710869, 412565349, 470132607, 962652481, 2887957443, 6738567367, 20215702101]

約数ペア:

[(1, 20215702101), (3, 6738567367), (7, 2887957443), (21, 962652481), (43, 470132607), (49, 412565349), (129, 156710869), (147, 137521783), (301, 67161801), (343, 58937907), (903, 22387267), (1029, 19645969), (2107, 9594543), (2401, 8419701), (6321, 3198181), (7203, 2806567), (14749, 1370649), (44247, 456883), (65269, 309729), (103243, 195807)]