21401258

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{7129}}^1$

素因数の和:7229

約数の個数: 16

約数和(自身を含む): 34224000

約数和(自身を除く): 12822742

約数列:

[1, 2, 19, 38, 79, 158, 1501, 3002, 7129, 14258, 135451, 270902, 563191, 1126382, 10700629, 21401258]

約数ペア:

[(1, 21401258), (2, 10700629), (19, 1126382), (38, 563191), (79, 270902), (158, 135451), (1501, 14258), (3002, 7129)]