20880252

素因数分解:

$2^2\times 3^2\times {\mathrm{523}}^1\times {\mathrm{1109}}^1$

素因数の和:1642

約数の個数: 36

約数和(自身を含む): 52929240

約数和(自身を除く): 32048988

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 523, 1046, 1109, 1569, 2092, 2218, 3138, 3327, 4436, 4707, 6276, 6654, 9414, 9981, 13308, 18828, 19962, 39924, 580007, 1160014, 1740021, 2320028, 3480042, 5220063, 6960084, 10440126, 20880252]

約数ペア:

[(1, 20880252), (2, 10440126), (3, 6960084), (4, 5220063), (6, 3480042), (9, 2320028), (12, 1740021), (18, 1160014), (36, 580007), (523, 39924), (1046, 19962), (1109, 18828), (1569, 13308), (2092, 9981), (2218, 9414), (3138, 6654), (3327, 6276), (4436, 4707)]