21238443

素因数分解:

$3^5\times {\mathrm{71}}^1\times {\mathrm{1231}}^1$

素因数の和:1317

約数の個数: 24

約数和(自身を含む): 32288256

約数和(自身を除く): 11049813

約数列:

[1, 3, 9, 27, 71, 81, 213, 243, 639, 1231, 1917, 3693, 5751, 11079, 17253, 33237, 87401, 99711, 262203, 299133, 786609, 2359827, 7079481, 21238443]

約数ペア:

[(1, 21238443), (3, 7079481), (9, 2359827), (27, 786609), (71, 299133), (81, 262203), (213, 99711), (243, 87401), (639, 33237), (1231, 17253), (1917, 11079), (3693, 5751)]