21348045

素因数分解:

$3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2621}}^1$

素因数の和:2813

約数の個数: 24

約数和(自身を含む): 37221912

約数和(自身を除く): 15873867

約数列:

[1, 3, 5, 9, 15, 45, 181, 543, 905, 1629, 2621, 2715, 7863, 8145, 13105, 23589, 39315, 117945, 474401, 1423203, 2372005, 4269609, 7116015, 21348045]

約数ペア:

[(1, 21348045), (3, 7116015), (5, 4269609), (9, 2372005), (15, 1423203), (45, 474401), (181, 117945), (543, 39315), (905, 23589), (1629, 13105), (2621, 8145), (2715, 7863)]