520239909

素因数分解:

$3^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{31319}}^1$

素因数の和:31449

約数の個数: 24

約数和(自身を含む): 814069440

約数和(自身を除く): 293829531

約数列:

[1, 3, 7, 21, 49, 113, 147, 339, 791, 2373, 5537, 16611, 31319, 93957, 219233, 657699, 1534631, 3539047, 4603893, 10617141, 24773329, 74319987, 173413303, 520239909]

約数ペア:

[(1, 520239909), (3, 173413303), (7, 74319987), (21, 24773329), (49, 10617141), (113, 4603893), (147, 3539047), (339, 1534631), (791, 657699), (2373, 219233), (5537, 93957), (16611, 31319)]