21493527

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{1877}}^1$

素因数の和:2238

約数の個数: 16

約数和(自身を含む): 31370112

約数和(自身を除く): 9876585

約数列:

[1, 3, 11, 33, 347, 1041, 1877, 3817, 5631, 11451, 20647, 61941, 651319, 1953957, 7164509, 21493527]

約数ペア:

[(1, 21493527), (3, 7164509), (11, 1953957), (33, 651319), (347, 61941), (1041, 20647), (1877, 11451), (3817, 5631)]