21357258

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{2711}}^1$

素因数の和:2830

約数の個数: 32

約数和(自身を含む): 46472832

約数和(自身を除く): 25115574

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 101, 202, 303, 606, 1313, 2626, 2711, 3939, 5422, 7878, 8133, 16266, 35243, 70486, 105729, 211458, 273811, 547622, 821433, 1642866, 3559543, 7119086, 10678629, 21357258]

約数ペア:

[(1, 21357258), (2, 10678629), (3, 7119086), (6, 3559543), (13, 1642866), (26, 821433), (39, 547622), (78, 273811), (101, 211458), (202, 105729), (303, 70486), (606, 35243), (1313, 16266), (2626, 8133), (2711, 7878), (3939, 5422)]