21171810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64157}}^1$

素因数の和:64178

約数の個数: 32

約数和(自身を含む): 55432512

約数和(自身を除く): 34260702

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330, 64157, 128314, 192471, 320785, 384942, 641570, 705727, 962355, 1411454, 1924710, 2117181, 3528635, 4234362, 7057270, 10585905, 21171810]

約数ペア:

[(1, 21171810), (2, 10585905), (3, 7057270), (5, 4234362), (6, 3528635), (10, 2117181), (11, 1924710), (15, 1411454), (22, 962355), (30, 705727), (33, 641570), (55, 384942), (66, 320785), (110, 192471), (165, 128314), (330, 64157)]