21196323

素因数分解:

$3^4\times {\mathrm{151}}^1\times {\mathrm{1733}}^1$

素因数の和:1896

約数の個数: 20

約数和(自身を含む): 31891728

約数和(自身を除く): 10695405

約数列:

[1, 3, 9, 27, 81, 151, 453, 1359, 1733, 4077, 5199, 12231, 15597, 46791, 140373, 261683, 785049, 2355147, 7065441, 21196323]

約数ペア:

[(1, 21196323), (3, 7065441), (9, 2355147), (27, 785049), (81, 261683), (151, 140373), (453, 46791), (1359, 15597), (1733, 12231), (4077, 5199)]