18212229

素因数分解:

$3^3\times 7^1\times {\mathrm{173}}^1\times {\mathrm{557}}^1$

素因数の和:746

約数の個数: 32

約数和(自身を含む): 31069440

約数和(自身を除く): 12857211

約数列:

[1, 3, 7, 9, 21, 27, 63, 173, 189, 519, 557, 1211, 1557, 1671, 3633, 3899, 4671, 5013, 10899, 11697, 15039, 32697, 35091, 96361, 105273, 289083, 674527, 867249, 2023581, 2601747, 6070743, 18212229]

約数ペア:

[(1, 18212229), (3, 6070743), (7, 2601747), (9, 2023581), (21, 867249), (27, 674527), (63, 289083), (173, 105273), (189, 96361), (519, 35091), (557, 32697), (1211, 15039), (1557, 11697), (1671, 10899), (3633, 5013), (3899, 4671)]