21262860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{118127}}^1$

素因数の和:118142

約数の個数: 36

約数和(自身を含む): 64497888

約数和(自身を除く): 43235028

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 118127, 236254, 354381, 472508, 590635, 708762, 1063143, 1181270, 1417524, 1771905, 2126286, 2362540, 3543810, 4252572, 5315715, 7087620, 10631430, 21262860]

約数ペア:

[(1, 21262860), (2, 10631430), (3, 7087620), (4, 5315715), (5, 4252572), (6, 3543810), (9, 2362540), (10, 2126286), (12, 1771905), (15, 1417524), (18, 1181270), (20, 1063143), (30, 708762), (36, 590635), (45, 472508), (60, 354381), (90, 236254), (180, 118127)]