21979971

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{4817}}^1$

素因数の和:4852

約数の個数: 24

約数和(自身を含む): 35267760

約数和(自身を除く): 13287789

約数列:

[1, 3, 9, 13, 27, 39, 117, 169, 351, 507, 1521, 4563, 4817, 14451, 43353, 62621, 130059, 187863, 563589, 814073, 1690767, 2442219, 7326657, 21979971]

約数ペア:

[(1, 21979971), (3, 7326657), (9, 2442219), (13, 1690767), (27, 814073), (39, 563589), (117, 187863), (169, 130059), (351, 62621), (507, 43353), (1521, 14451), (4563, 4817)]