20816484

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{133439}}^1$

素因数の和:133459

約数の個数: 24

約数和(自身を含む): 52308480

約数和(自身を除く): 31491996

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 133439, 266878, 400317, 533756, 800634, 1601268, 1734707, 3469414, 5204121, 6938828, 10408242, 20816484]

約数ペア:

[(1, 20816484), (2, 10408242), (3, 6938828), (4, 5204121), (6, 3469414), (12, 1734707), (13, 1601268), (26, 800634), (39, 533756), (52, 400317), (78, 266878), (156, 133439)]