21745994

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:362

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 14542006

約数列:

[1, 2, 19, 23, 38, 46, 139, 179, 278, 358, 437, 874, 2641, 3197, 3401, 4117, 5282, 6394, 6802, 8234, 24881, 49762, 60743, 78223, 121486, 156446, 472739, 572263, 945478, 1144526, 10872997, 21745994]

約数ペア:

[(1, 21745994), (2, 10872997), (19, 1144526), (23, 945478), (38, 572263), (46, 472739), (139, 156446), (179, 121486), (278, 78223), (358, 60743), (437, 49762), (874, 24881), (2641, 8234), (3197, 6802), (3401, 6394), (4117, 5282)]