21955020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1321}}^1$

素因数の和:1610

約数の個数: 48

約数和(自身を含む): 61742688

約数和(自身を除く): 39787668

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 277, 554, 831, 1108, 1321, 1385, 1662, 2642, 2770, 3324, 3963, 4155, 5284, 5540, 6605, 7926, 8310, 13210, 15852, 16620, 19815, 26420, 39630, 79260, 365917, 731834, 1097751, 1463668, 1829585, 2195502, 3659170, 4391004, 5488755, 7318340, 10977510, 21955020]

約数ペア:

[(1, 21955020), (2, 10977510), (3, 7318340), (4, 5488755), (5, 4391004), (6, 3659170), (10, 2195502), (12, 1829585), (15, 1463668), (20, 1097751), (30, 731834), (60, 365917), (277, 79260), (554, 39630), (831, 26420), (1108, 19815), (1321, 16620), (1385, 15852), (1662, 13210), (2642, 8310), (2770, 7926), (3324, 6605), (3963, 5540), (4155, 5284)]