20644428

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1373}}^1$

素因数の和:1566

約数の個数: 48

約数和(自身を含む): 55399680

約数和(自身を除く): 34755252

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 179, 358, 537, 716, 1074, 1253, 1373, 2148, 2506, 2746, 3759, 4119, 5012, 5492, 7518, 8238, 9611, 15036, 16476, 19222, 28833, 38444, 57666, 115332, 245767, 491534, 737301, 983068, 1474602, 1720369, 2949204, 3440738, 5161107, 6881476, 10322214, 20644428]

約数ペア:

[(1, 20644428), (2, 10322214), (3, 6881476), (4, 5161107), (6, 3440738), (7, 2949204), (12, 1720369), (14, 1474602), (21, 983068), (28, 737301), (42, 491534), (84, 245767), (179, 115332), (358, 57666), (537, 38444), (716, 28833), (1074, 19222), (1253, 16476), (1373, 15036), (2148, 9611), (2506, 8238), (2746, 7518), (3759, 5492), (4119, 5012)]