21703578

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{4153}}^1$

素因数の和:4238

約数の個数: 32

約数和(自身を含む): 47455296

約数和(自身を除く): 25751718

約数列:

[1, 2, 3, 6, 13, 26, 39, 67, 78, 134, 201, 402, 871, 1742, 2613, 4153, 5226, 8306, 12459, 24918, 53989, 107978, 161967, 278251, 323934, 556502, 834753, 1669506, 3617263, 7234526, 10851789, 21703578]

約数ペア:

[(1, 21703578), (2, 10851789), (3, 7234526), (6, 3617263), (13, 1669506), (26, 834753), (39, 556502), (67, 323934), (78, 278251), (134, 161967), (201, 107978), (402, 53989), (871, 24918), (1742, 12459), (2613, 8306), (4153, 5226)]