21667180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{63727}}^1$

素因数の和:63753

約数の個数: 24

約数和(自身を含む): 48178368

約数和(自身を除く): 26511188

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 63727, 127454, 254908, 318635, 637270, 1083359, 1274540, 2166718, 4333436, 5416795, 10833590, 21667180]

約数ペア:

[(1, 21667180), (2, 10833590), (4, 5416795), (5, 4333436), (10, 2166718), (17, 1274540), (20, 1083359), (34, 637270), (68, 318635), (85, 254908), (170, 127454), (340, 63727)]