20177676

素因数分解:

$2^2\times 3^2\times {\mathrm{560491}}^1$

素因数の和:560501

約数の個数: 18

約数和(自身を含む): 51004772

約数和(自身を除く): 30827096

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 560491, 1120982, 1681473, 2241964, 3362946, 5044419, 6725892, 10088838, 20177676]

約数ペア:

[(1, 20177676), (2, 10088838), (3, 6725892), (4, 5044419), (6, 3362946), (9, 2241964), (12, 1681473), (18, 1120982), (36, 560491)]