20814716

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{751}}^1$

素因数の和:822

約数の個数: 36

約数和(自身を含む): 40459104

約数和(自身を除く): 19644388

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 169, 338, 533, 676, 751, 1066, 1502, 2132, 3004, 6929, 9763, 13858, 19526, 27716, 30791, 39052, 61582, 123164, 126919, 253838, 400283, 507676, 800566, 1601132, 5203679, 10407358, 20814716]

約数ペア:

[(1, 20814716), (2, 10407358), (4, 5203679), (13, 1601132), (26, 800566), (41, 507676), (52, 400283), (82, 253838), (164, 126919), (169, 123164), (338, 61582), (533, 39052), (676, 30791), (751, 27716), (1066, 19526), (1502, 13858), (2132, 9763), (3004, 6929)]