20560743

素因数分解:

$3^3\times 7^2\times {\mathrm{15541}}^1$

素因数の和:15564

約数の個数: 24

約数和(自身を含む): 35435760

約数和(自身を除く): 14875017

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 15541, 46623, 108787, 139869, 326361, 419607, 761509, 979083, 2284527, 2937249, 6853581, 20560743]

約数ペア:

[(1, 20560743), (3, 6853581), (7, 2937249), (9, 2284527), (21, 979083), (27, 761509), (49, 419607), (63, 326361), (147, 139869), (189, 108787), (441, 46623), (1323, 15541)]