21084540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2767}}^1$

素因数の和:2906

約数の個数: 48

約数和(自身を含む): 59523072

約数和(自身を除く): 38438532

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, 2767, 3810, 5534, 7620, 8301, 11068, 13835, 16602, 27670, 33204, 41505, 55340, 83010, 166020, 351409, 702818, 1054227, 1405636, 1757045, 2108454, 3514090, 4216908, 5271135, 7028180, 10542270, 21084540]

約数ペア:

[(1, 21084540), (2, 10542270), (3, 7028180), (4, 5271135), (5, 4216908), (6, 3514090), (10, 2108454), (12, 1757045), (15, 1405636), (20, 1054227), (30, 702818), (60, 351409), (127, 166020), (254, 83010), (381, 55340), (508, 41505), (635, 33204), (762, 27670), (1270, 16602), (1524, 13835), (1905, 11068), (2540, 8301), (2767, 7620), (3810, 5534)]