21690746

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2309}}^1$

素因数の和:2390

約数の個数: 32

約数和(自身を含む): 41247360

約数和(自身を除く): 19556614

約数列:

[1, 2, 7, 11, 14, 22, 61, 77, 122, 154, 427, 671, 854, 1342, 2309, 4618, 4697, 9394, 16163, 25399, 32326, 50798, 140849, 177793, 281698, 355586, 985943, 1549339, 1971886, 3098678, 10845373, 21690746]

約数ペア:

[(1, 21690746), (2, 10845373), (7, 3098678), (11, 1971886), (14, 1549339), (22, 985943), (61, 355586), (77, 281698), (122, 177793), (154, 140849), (427, 50798), (671, 32326), (854, 25399), (1342, 16163), (2309, 9394), (4618, 4697)]