20402718

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{2393}}^1$

素因数の和:2441

約数の個数: 48

約数和(自身を含む): 49124880

約数和(自身を除く): 28722162

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 49, 58, 87, 98, 147, 174, 203, 294, 406, 609, 1218, 1421, 2393, 2842, 4263, 4786, 7179, 8526, 14358, 16751, 33502, 50253, 69397, 100506, 117257, 138794, 208191, 234514, 351771, 416382, 485779, 703542, 971558, 1457337, 2914674, 3400453, 6800906, 10201359, 20402718]

約数ペア:

[(1, 20402718), (2, 10201359), (3, 6800906), (6, 3400453), (7, 2914674), (14, 1457337), (21, 971558), (29, 703542), (42, 485779), (49, 416382), (58, 351771), (87, 234514), (98, 208191), (147, 138794), (174, 117257), (203, 100506), (294, 69397), (406, 50253), (609, 33502), (1218, 16751), (1421, 14358), (2393, 8526), (2842, 7179), (4263, 4786)]