21537604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{16879}}^1$

素因数の和:16923

約数の個数: 24

約数和(自身を含む): 42537600

約数和(自身を除く): 20999996

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 116, 319, 638, 1276, 16879, 33758, 67516, 185669, 371338, 489491, 742676, 978982, 1957964, 5384401, 10768802, 21537604]

約数ペア:

[(1, 21537604), (2, 10768802), (4, 5384401), (11, 1957964), (22, 978982), (29, 742676), (44, 489491), (58, 371338), (116, 185669), (319, 67516), (638, 33758), (1276, 16879)]