87645321

素因数分解:

$3^4\times {\mathrm{313}}^1\times {\mathrm{3457}}^1$

素因数の和:3782

約数の個数: 20

約数和(自身を含む): 131383252

約数和(自身を除く): 43737931

約数列:

[1, 3, 9, 27, 81, 313, 939, 2817, 3457, 8451, 10371, 25353, 31113, 93339, 280017, 1082041, 3246123, 9738369, 29215107, 87645321]

約数ペア:

[(1, 87645321), (3, 29215107), (9, 9738369), (27, 3246123), (81, 1082041), (313, 280017), (939, 93339), (2817, 31113), (3457, 25353), (8451, 10371)]