261940721

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{3469}}^1$

素因数の和:3573

約数の個数: 24

約数和(自身を含む): 322793280

約数和(自身を除く): 60852559

約数列:

[1, 7, 23, 49, 67, 161, 469, 1127, 1541, 3283, 3469, 10787, 24283, 75509, 79787, 169981, 232423, 558509, 1626961, 3909563, 5345729, 11388727, 37420103, 261940721]

約数ペア:

[(1, 261940721), (7, 37420103), (23, 11388727), (49, 5345729), (67, 3909563), (161, 1626961), (469, 558509), (1127, 232423), (1541, 169981), (3283, 79787), (3469, 75509), (10787, 24283)]