21129332

素因数分解:

$2^2\times 7^1\times {\mathrm{419}}^1\times {\mathrm{1801}}^1$

素因数の和:2231

約数の個数: 24

約数和(自身を含む): 42383040

約数和(自身を除く): 21253708

約数列:

[1, 2, 4, 7, 14, 28, 419, 838, 1676, 1801, 2933, 3602, 5866, 7204, 11732, 12607, 25214, 50428, 754619, 1509238, 3018476, 5282333, 10564666, 21129332]

約数ペア:

[(1, 21129332), (2, 10564666), (4, 5282333), (7, 3018476), (14, 1509238), (28, 754619), (419, 50428), (838, 25214), (1676, 12607), (1801, 11732), (2933, 7204), (3602, 5866)]