20945028

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{134263}}^1$

素因数の和:134283

約数の個数: 24

約数和(自身を含む): 52631488

約数和(自身を除く): 31686460

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 134263, 268526, 402789, 537052, 805578, 1611156, 1745419, 3490838, 5236257, 6981676, 10472514, 20945028]

約数ペア:

[(1, 20945028), (2, 10472514), (3, 6981676), (4, 5236257), (6, 3490838), (12, 1745419), (13, 1611156), (26, 805578), (39, 537052), (52, 402789), (78, 268526), (156, 134263)]