21631760

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{4583}}^1$

素因数の和:4655

約数の個数: 40

約数和(自身を含む): 51157440

約数和(自身を除く): 29525680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4583, 4720, 9166, 18332, 22915, 36664, 45830, 73328, 91660, 183320, 270397, 366640, 540794, 1081588, 1351985, 2163176, 2703970, 4326352, 5407940, 10815880, 21631760]

約数ペア:

[(1, 21631760), (2, 10815880), (4, 5407940), (5, 4326352), (8, 2703970), (10, 2163176), (16, 1351985), (20, 1081588), (40, 540794), (59, 366640), (80, 270397), (118, 183320), (236, 91660), (295, 73328), (472, 45830), (590, 36664), (944, 22915), (1180, 18332), (2360, 9166), (4583, 4720)]