21100898

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{431}}^1$

素因数の和:722

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 18090142

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 269, 431, 538, 862, 1883, 3017, 3497, 3766, 5603, 6034, 6994, 11206, 24479, 39221, 48958, 78442, 115939, 231878, 811573, 1507207, 1623146, 3014414, 10550449, 21100898]

約数ペア:

[(1, 21100898), (2, 10550449), (7, 3014414), (13, 1623146), (14, 1507207), (26, 811573), (91, 231878), (182, 115939), (269, 78442), (431, 48958), (538, 39221), (862, 24479), (1883, 11206), (3017, 6994), (3497, 6034), (3766, 5603)]