21430052

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{3527}}^1$

素因数の和:3576

約数の個数: 36

約数和(自身を含む): 45045504

約数和(自身を除く): 23615452

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 196, 217, 434, 868, 1519, 3038, 3527, 6076, 7054, 14108, 24689, 49378, 98756, 109337, 172823, 218674, 345646, 437348, 691292, 765359, 1530718, 3061436, 5357513, 10715026, 21430052]

約数ペア:

[(1, 21430052), (2, 10715026), (4, 5357513), (7, 3061436), (14, 1530718), (28, 765359), (31, 691292), (49, 437348), (62, 345646), (98, 218674), (124, 172823), (196, 109337), (217, 98756), (434, 49378), (868, 24689), (1519, 14108), (3038, 7054), (3527, 6076)]