21250996

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{13183}}^1$

素因数の和:13231

約数の個数: 24

約数和(自身を含む): 41345024

約数和(自身を除く): 20094028

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 13183, 26366, 52732, 171379, 342758, 408673, 685516, 817346, 1634692, 5312749, 10625498, 21250996]

約数ペア:

[(1, 21250996), (2, 10625498), (4, 5312749), (13, 1634692), (26, 817346), (31, 685516), (52, 408673), (62, 342758), (124, 171379), (403, 52732), (806, 26366), (1612, 13183)]