21098265

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{409}}^1$

素因数の和:617

約数の個数: 32

約数和(自身を含む): 35817600

約数和(自身を除く): 14719335

約数列:

[1, 3, 5, 15, 19, 57, 95, 181, 285, 409, 543, 905, 1227, 2045, 2715, 3439, 6135, 7771, 10317, 17195, 23313, 38855, 51585, 74029, 116565, 222087, 370145, 1110435, 1406551, 4219653, 7032755, 21098265]

約数ペア:

[(1, 21098265), (3, 7032755), (5, 4219653), (15, 1406551), (19, 1110435), (57, 370145), (95, 222087), (181, 116565), (285, 74029), (409, 51585), (543, 38855), (905, 23313), (1227, 17195), (2045, 10317), (2715, 7771), (3439, 6135)]