21358860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2803}}^1$

素因数の和:2942

約数の個数: 48

約数和(自身を含む): 60297216

約数和(自身を除く): 38938356

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 127, 254, 381, 508, 635, 762, 1270, 1524, 1905, 2540, 2803, 3810, 5606, 7620, 8409, 11212, 14015, 16818, 28030, 33636, 42045, 56060, 84090, 168180, 355981, 711962, 1067943, 1423924, 1779905, 2135886, 3559810, 4271772, 5339715, 7119620, 10679430, 21358860]

約数ペア:

[(1, 21358860), (2, 10679430), (3, 7119620), (4, 5339715), (5, 4271772), (6, 3559810), (10, 2135886), (12, 1779905), (15, 1423924), (20, 1067943), (30, 711962), (60, 355981), (127, 168180), (254, 84090), (381, 56060), (508, 42045), (635, 33636), (762, 28030), (1270, 16818), (1524, 14015), (1905, 11212), (2540, 8409), (2803, 7620), (3810, 5606)]