20459988

素因数分解:

$2^2\times 3^2\times {\mathrm{547}}^1\times {\mathrm{1039}}^1$

素因数の和:1596

約数の個数: 36

約数和(自身を含む): 51862720

約数和(自身を除く): 31402732

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 547, 1039, 1094, 1641, 2078, 2188, 3117, 3282, 4156, 4923, 6234, 6564, 9351, 9846, 12468, 18702, 19692, 37404, 568333, 1136666, 1704999, 2273332, 3409998, 5114997, 6819996, 10229994, 20459988]

約数ペア:

[(1, 20459988), (2, 10229994), (3, 6819996), (4, 5114997), (6, 3409998), (9, 2273332), (12, 1704999), (18, 1136666), (36, 568333), (547, 37404), (1039, 19692), (1094, 18702), (1641, 12468), (2078, 9846), (2188, 9351), (3117, 6564), (3282, 6234), (4156, 4923)]