66820369

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{821}}^1$

素因数の和:997

約数の個数: 24

約数和(自身を含む): 85461696

約数和(自身を除く): 18641327

約数列:

[1, 7, 11, 49, 77, 151, 539, 821, 1057, 1661, 5747, 7399, 9031, 11627, 40229, 63217, 81389, 123971, 442519, 867797, 1363681, 6074579, 9545767, 66820369]

約数ペア:

[(1, 66820369), (7, 9545767), (11, 6074579), (49, 1363681), (77, 867797), (151, 442519), (539, 123971), (821, 81389), (1057, 63217), (1661, 40229), (5747, 11627), (7399, 9031)]