21665402

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{911}}^1$

素因数の和:994

約数の個数: 32

約数和(自身を含む): 37822464

約数和(自身を除く): 16157062

約数列:

[1, 2, 11, 22, 23, 46, 47, 94, 253, 506, 517, 911, 1034, 1081, 1822, 2162, 10021, 11891, 20042, 20953, 23782, 41906, 42817, 85634, 230483, 460966, 470987, 941974, 984791, 1969582, 10832701, 21665402]

約数ペア:

[(1, 21665402), (2, 10832701), (11, 1969582), (22, 984791), (23, 941974), (46, 470987), (47, 460966), (94, 230483), (253, 85634), (506, 42817), (517, 41906), (911, 23782), (1034, 20953), (1081, 20042), (1822, 11891), (2162, 10021)]