16909263

素因数分解:

$3^3\times 7^2\times {\mathrm{12781}}^1$

素因数の和:12804

約数の個数: 24

約数和(自身を含む): 29142960

約数和(自身を除く): 12233697

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 12781, 38343, 89467, 115029, 268401, 345087, 626269, 805203, 1878807, 2415609, 5636421, 16909263]

約数ペア:

[(1, 16909263), (3, 5636421), (7, 2415609), (9, 1878807), (21, 805203), (27, 626269), (49, 345087), (63, 268401), (147, 115029), (189, 89467), (441, 38343), (1323, 12781)]