21199172

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{2089}}^1$

素因数の和:2195

約数の個数: 24

約数和(自身を含む): 38623200

約数和(自身を除く): 17424028

約数列:

[1, 2, 4, 43, 59, 86, 118, 172, 236, 2089, 2537, 4178, 5074, 8356, 10148, 89827, 123251, 179654, 246502, 359308, 493004, 5299793, 10599586, 21199172]

約数ペア:

[(1, 21199172), (2, 10599586), (4, 5299793), (43, 493004), (59, 359308), (86, 246502), (118, 179654), (172, 123251), (236, 89827), (2089, 10148), (2537, 8356), (4178, 5074)]