21808760

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{9241}}^1$

素因数の和:9311

約数の個数: 32

約数和(自身を含む): 49906800

約数和(自身を除く): 28098040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 9241, 18482, 36964, 46205, 73928, 92410, 184820, 369640, 545219, 1090438, 2180876, 2726095, 4361752, 5452190, 10904380, 21808760]

約数ペア:

[(1, 21808760), (2, 10904380), (4, 5452190), (5, 4361752), (8, 2726095), (10, 2180876), (20, 1090438), (40, 545219), (59, 369640), (118, 184820), (236, 92410), (295, 73928), (472, 46205), (590, 36964), (1180, 18482), (2360, 9241)]