21804870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16903}}^1$

素因数の和:16956

約数の個数: 32

約数和(自身を含む): 53551872

約数和(自身を除く): 31747002

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 16903, 33806, 50709, 84515, 101418, 169030, 253545, 507090, 726829, 1453658, 2180487, 3634145, 4360974, 7268290, 10902435, 21804870]

約数ペア:

[(1, 21804870), (2, 10902435), (3, 7268290), (5, 4360974), (6, 3634145), (10, 2180487), (15, 1453658), (30, 726829), (43, 507090), (86, 253545), (129, 169030), (215, 101418), (258, 84515), (430, 50709), (645, 33806), (1290, 16903)]