21457359

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10321}}^1$

素因数の和:10348

約数の個数: 32

約数和(自身を含む): 39636480

約数和(自身を除く): 18179121

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 693, 2079, 10321, 30963, 72247, 92889, 113531, 216741, 278667, 340593, 650223, 794717, 1021779, 1950669, 2384151, 3065337, 7152453, 21457359]

約数ペア:

[(1, 21457359), (3, 7152453), (7, 3065337), (9, 2384151), (11, 1950669), (21, 1021779), (27, 794717), (33, 650223), (63, 340593), (77, 278667), (99, 216741), (189, 113531), (231, 92889), (297, 72247), (693, 30963), (2079, 10321)]