21609945217

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1\times {\mathrm{7129}}^1$

素因数の和:7457

約数の個数: 32

約数和(自身を含む): 26028492800

約数和(自身を除く): 4418547583

約数列:

[1, 7, 31, 61, 217, 229, 427, 1603, 1891, 7099, 7129, 13237, 13969, 49693, 49903, 97783, 220999, 433039, 434869, 1546993, 1632541, 3031273, 3044083, 11427787, 13480939, 50608771, 94366573, 99585001, 354261397, 697095007, 3087135031, 21609945217]

約数ペア:

[(1, 21609945217), (7, 3087135031), (31, 697095007), (61, 354261397), (217, 99585001), (229, 94366573), (427, 50608771), (1603, 13480939), (1891, 11427787), (7099, 3044083), (7129, 3031273), (13237, 1632541), (13969, 1546993), (49693, 434869), (49903, 433039), (97783, 220999)]