221222015

素因数分解:

$5^1\times 7^2\times {\mathrm{229}}^1\times {\mathrm{3943}}^1$

素因数の和:4191

約数の個数: 24

約数和(自身を含む): 310235040

約数和(自身を除く): 89013025

約数列:

[1, 5, 7, 35, 49, 229, 245, 1145, 1603, 3943, 8015, 11221, 19715, 27601, 56105, 138005, 193207, 902947, 966035, 4514735, 6320629, 31603145, 44244403, 221222015]

約数ペア:

[(1, 221222015), (5, 44244403), (7, 31603145), (35, 6320629), (49, 4514735), (229, 966035), (245, 902947), (1145, 193207), (1603, 138005), (3943, 56105), (8015, 27601), (11221, 19715)]