21373864

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{443}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 41505120

約数和(自身を除く): 20131256

約数列:

[1, 2, 4, 8, 37, 74, 148, 163, 296, 326, 443, 652, 886, 1304, 1772, 3544, 6031, 12062, 16391, 24124, 32782, 48248, 65564, 72209, 131128, 144418, 288836, 577672, 2671733, 5343466, 10686932, 21373864]

約数ペア:

[(1, 21373864), (2, 10686932), (4, 5343466), (8, 2671733), (37, 577672), (74, 288836), (148, 144418), (163, 131128), (296, 72209), (326, 65564), (443, 48248), (652, 32782), (886, 24124), (1304, 16391), (1772, 12062), (3544, 6031)]