21148803

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{677}}^1$

素因数の和:788

約数の個数: 32

約数和(自身を含む): 34171200

約数和(自身を除く): 13022397

約数列:

[1, 3, 9, 13, 27, 39, 89, 117, 267, 351, 677, 801, 1157, 2031, 2403, 3471, 6093, 8801, 10413, 18279, 26403, 31239, 60253, 79209, 180759, 237627, 542277, 783289, 1626831, 2349867, 7049601, 21148803]

約数ペア:

[(1, 21148803), (3, 7049601), (9, 2349867), (13, 1626831), (27, 783289), (39, 542277), (89, 237627), (117, 180759), (267, 79209), (351, 60253), (677, 31239), (801, 26403), (1157, 18279), (2031, 10413), (2403, 8801), (3471, 6093)]