89777583

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{20071}}^1$

素因数の和:20155

約数の個数: 24

約数和(自身を含む): 150299136

約数和(自身を除く): 60521553

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 20071, 60213, 140497, 180639, 421491, 1264473, 1425041, 4275123, 9975287, 12825369, 29925861, 89777583]

約数ペア:

[(1, 89777583), (3, 29925861), (7, 12825369), (9, 9975287), (21, 4275123), (63, 1425041), (71, 1264473), (213, 421491), (497, 180639), (639, 140497), (1491, 60213), (4473, 20071)]