21158045286380

素因数分解:

$2^2\times 5^1\times {\mathrm{1487}}^1\times {\mathrm{6737}}^1\times {\mathrm{105601}}^1$

素因数の和:113834

約数の個数: 48

約数和(自身を含む): 44468796064896

約数和(自身を除く): 23310750778516

約数列:

[1, 2, 4, 5, 10, 20, 1487, 2974, 5948, 6737, 7435, 13474, 14870, 26948, 29740, 33685, 67370, 105601, 134740, 211202, 422404, 528005, 1056010, 2112020, 10017919, 20035838, 40071676, 50089595, 100179190, 157028687, 200358380, 314057374, 628114748, 711433937, 785143435, 1422867874, 1570286870, 2845735748, 3140573740, 3557169685, 7114339370, 14228678740, 1057902264319, 2115804528638, 4231609057276, 5289511321595, 10579022643190, 21158045286380]

約数ペア:

[(1, 21158045286380), (2, 10579022643190), (4, 5289511321595), (5, 4231609057276), (10, 2115804528638), (20, 1057902264319), (1487, 14228678740), (2974, 7114339370), (5948, 3557169685), (6737, 3140573740), (7435, 2845735748), (13474, 1570286870), (14870, 1422867874), (26948, 785143435), (29740, 711433937), (33685, 628114748), (67370, 314057374), (105601, 200358380), (134740, 157028687), (211202, 100179190), (422404, 50089595), (528005, 40071676), (1056010, 20035838), (2112020, 10017919)]