20669628

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2389}}^1$

素因数の和:2506

約数の個数: 48

約数和(自身を含む): 55677440

約数和(自身を除く): 35007812

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 103, 206, 309, 412, 618, 721, 1236, 1442, 2163, 2389, 2884, 4326, 4778, 7167, 8652, 9556, 14334, 16723, 28668, 33446, 50169, 66892, 100338, 200676, 246067, 492134, 738201, 984268, 1476402, 1722469, 2952804, 3444938, 5167407, 6889876, 10334814, 20669628]

約数ペア:

[(1, 20669628), (2, 10334814), (3, 6889876), (4, 5167407), (6, 3444938), (7, 2952804), (12, 1722469), (14, 1476402), (21, 984268), (28, 738201), (42, 492134), (84, 246067), (103, 200676), (206, 100338), (309, 66892), (412, 50169), (618, 33446), (721, 28668), (1236, 16723), (1442, 14334), (2163, 9556), (2389, 8652), (2884, 7167), (4326, 4778)]