20512971405

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14704639}}^1$

素因数の和:14704681

約数の個数: 24

約数和(自身を含む): 36702781440

約数和(自身を除く): 16189810035

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 14704639, 44113917, 73523195, 132341751, 220569585, 455843809, 661708755, 1367531427, 2279219045, 4102594281, 6837657135, 20512971405]

約数ペア:

[(1, 20512971405), (3, 6837657135), (5, 4102594281), (9, 2279219045), (15, 1367531427), (31, 661708755), (45, 455843809), (93, 220569585), (155, 132341751), (279, 73523195), (465, 44113917), (1395, 14704639)]