20515284

素因数分解:

$2^2\times 3^2\times {\mathrm{569869}}^1$

素因数の和:569879

約数の個数: 18

約数和(自身を含む): 51858170

約数和(自身を除く): 31342886

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 569869, 1139738, 1709607, 2279476, 3419214, 5128821, 6838428, 10257642, 20515284]

約数ペア:

[(1, 20515284), (2, 10257642), (3, 6838428), (4, 5128821), (6, 3419214), (9, 2279476), (12, 1709607), (18, 1139738), (36, 569869)]