19976012

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{337}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 42020160

約数和(自身を除く): 22044148

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 73, 116, 146, 203, 292, 337, 406, 511, 674, 812, 1022, 1348, 2044, 2117, 2359, 4234, 4718, 8468, 9436, 9773, 14819, 19546, 24601, 29638, 39092, 49202, 59276, 68411, 98404, 136822, 172207, 273644, 344414, 688828, 713429, 1426858, 2853716, 4994003, 9988006, 19976012]

約数ペア:

[(1, 19976012), (2, 9988006), (4, 4994003), (7, 2853716), (14, 1426858), (28, 713429), (29, 688828), (58, 344414), (73, 273644), (116, 172207), (146, 136822), (203, 98404), (292, 68411), (337, 59276), (406, 49202), (511, 39092), (674, 29638), (812, 24601), (1022, 19546), (1348, 14819), (2044, 9773), (2117, 9436), (2359, 8468), (4234, 4718)]