21516510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{443}}^1\times {\mathrm{1619}}^1$

素因数の和:2072

約数の個数: 32

約数和(自身を含む): 51788160

約数和(自身を除く): 30271650

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 443, 886, 1329, 1619, 2215, 2658, 3238, 4430, 4857, 6645, 8095, 9714, 13290, 16190, 24285, 48570, 717217, 1434434, 2151651, 3586085, 4303302, 7172170, 10758255, 21516510]

約数ペア:

[(1, 21516510), (2, 10758255), (3, 7172170), (5, 4303302), (6, 3586085), (10, 2151651), (15, 1434434), (30, 717217), (443, 48570), (886, 24285), (1329, 16190), (1619, 13290), (2215, 9714), (2658, 8095), (3238, 6645), (4430, 4857)]