19292819

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{977}}^1$

素因数の和:1035

約数の個数: 24

約数和(自身を含む): 24974208

約数和(自身を除く): 5681389

約数列:

[1, 7, 13, 31, 49, 91, 217, 403, 637, 977, 1519, 2821, 6839, 12701, 19747, 30287, 47873, 88907, 212009, 393731, 622349, 1484063, 2756117, 19292819]

約数ペア:

[(1, 19292819), (7, 2756117), (13, 1484063), (31, 622349), (49, 393731), (91, 212009), (217, 88907), (403, 47873), (637, 30287), (977, 19747), (1519, 12701), (2821, 6839)]