21000252678

素因数分解:

$2^1\times 3^1\times {\mathrm{163}}^1\times {\mathrm{1021}}^1\times {\mathrm{21031}}^1$

素因数の和:22220

約数の個数: 32

約数和(自身を含む): 42301577472

約数和(自身を除く): 21301324794

約数列:

[1, 2, 3, 6, 163, 326, 489, 978, 1021, 2042, 3063, 6126, 21031, 42062, 63093, 126186, 166423, 332846, 499269, 998538, 3428053, 6856106, 10284159, 20568318, 21472651, 42945302, 64417953, 128835906, 3500042113, 7000084226, 10500126339, 21000252678]

約数ペア:

[(1, 21000252678), (2, 10500126339), (3, 7000084226), (6, 3500042113), (163, 128835906), (326, 64417953), (489, 42945302), (978, 21472651), (1021, 20568318), (2042, 10284159), (3063, 6856106), (6126, 3428053), (21031, 998538), (42062, 499269), (63093, 332846), (126186, 166423)]