8820009

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1$

素因数の和:563

約数の個数: 40

約数和(自身を含む): 15158880

約数和(自身を除く): 6338871

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 81, 99, 171, 209, 297, 513, 521, 627, 891, 1539, 1563, 1881, 4689, 5643, 5731, 9899, 14067, 16929, 17193, 29697, 42201, 51579, 89091, 108889, 154737, 267273, 326667, 464211, 801819, 980001, 2940003, 8820009]

約数ペア:

[(1, 8820009), (3, 2940003), (9, 980001), (11, 801819), (19, 464211), (27, 326667), (33, 267273), (57, 154737), (81, 108889), (99, 89091), (171, 51579), (209, 42201), (297, 29697), (513, 17193), (521, 16929), (627, 14067), (891, 9899), (1539, 5731), (1563, 5643), (1881, 4689)]