21326217

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{487}}^1\times {\mathrm{1327}}^1$

素因数の和:1828

約数の個数: 16

約数和(自身を含む): 31107072

約数和(自身を除く): 9780855

約数列:

[1, 3, 11, 33, 487, 1327, 1461, 3981, 5357, 14597, 16071, 43791, 646249, 1938747, 7108739, 21326217]

約数ペア:

[(1, 21326217), (3, 7108739), (11, 1938747), (33, 646249), (487, 43791), (1327, 16071), (1461, 14597), (3981, 5357)]