21640743

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{173}}^1$

素因数の和:336

約数の個数: 32

約数和(自身を含む): 33324480

約数和(自身を除く): 11683737

約数列:

[1, 3, 9, 27, 41, 113, 123, 173, 339, 369, 519, 1017, 1107, 1557, 3051, 4633, 4671, 7093, 13899, 19549, 21279, 41697, 58647, 63837, 125091, 175941, 191511, 527823, 801509, 2404527, 7213581, 21640743]

約数ペア:

[(1, 21640743), (3, 7213581), (9, 2404527), (27, 801509), (41, 527823), (113, 191511), (123, 175941), (173, 125091), (339, 63837), (369, 58647), (519, 41697), (1017, 21279), (1107, 19549), (1557, 13899), (3051, 7093), (4633, 4671)]