20723742

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{557}}^1$

素因数の和:634

約数の個数: 64

約数和(自身を含む): 50621760

約数和(自身を除く): 29898018

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 53, 54, 78, 106, 117, 159, 234, 318, 351, 477, 557, 689, 702, 954, 1114, 1378, 1431, 1671, 2067, 2862, 3342, 4134, 5013, 6201, 7241, 10026, 12402, 14482, 15039, 18603, 21723, 29521, 30078, 37206, 43446, 59042, 65169, 88563, 130338, 177126, 195507, 265689, 383773, 391014, 531378, 767546, 797067, 1151319, 1594134, 2302638, 3453957, 6907914, 10361871, 20723742]

約数ペア:

[(1, 20723742), (2, 10361871), (3, 6907914), (6, 3453957), (9, 2302638), (13, 1594134), (18, 1151319), (26, 797067), (27, 767546), (39, 531378), (53, 391014), (54, 383773), (78, 265689), (106, 195507), (117, 177126), (159, 130338), (234, 88563), (318, 65169), (351, 59042), (477, 43446), (557, 37206), (689, 30078), (702, 29521), (954, 21723), (1114, 18603), (1378, 15039), (1431, 14482), (1671, 12402), (2067, 10026), (2862, 7241), (3342, 6201), (4134, 5013)]