20488413

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 31334400

約数和(自身を除く): 10845987

約数列:

[1, 3, 11, 29, 33, 79, 87, 237, 271, 319, 813, 869, 957, 2291, 2607, 2981, 6873, 7859, 8943, 21409, 23577, 25201, 64227, 75603, 86449, 235499, 259347, 620861, 706497, 1862583, 6829471, 20488413]

約数ペア:

[(1, 20488413), (3, 6829471), (11, 1862583), (29, 706497), (33, 620861), (79, 259347), (87, 235499), (237, 86449), (271, 75603), (319, 64227), (813, 25201), (869, 23577), (957, 21409), (2291, 8943), (2607, 7859), (2981, 6873)]