21062680

素因数分解:

$2^3\times 5^1\times {\mathrm{613}}^1\times {\mathrm{859}}^1$

素因数の和:1483

約数の個数: 32

約数和(自身を含む): 47523600

約数和(自身を除く): 26460920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 613, 859, 1226, 1718, 2452, 3065, 3436, 4295, 4904, 6130, 6872, 8590, 12260, 17180, 24520, 34360, 526567, 1053134, 2106268, 2632835, 4212536, 5265670, 10531340, 21062680]

約数ペア:

[(1, 21062680), (2, 10531340), (4, 5265670), (5, 4212536), (8, 2632835), (10, 2106268), (20, 1053134), (40, 526567), (613, 34360), (859, 24520), (1226, 17180), (1718, 12260), (2452, 8590), (3065, 6872), (3436, 6130), (4295, 4904)]