21201176

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{155891}}^1$

素因数の和:155914

約数の個数: 16

約数和(自身を含む): 42090840

約数和(自身を除く): 20889664

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 155891, 311782, 623564, 1247128, 2650147, 5300294, 10600588, 21201176]

約数ペア:

[(1, 21201176), (2, 10600588), (4, 5300294), (8, 2650147), (17, 1247128), (34, 623564), (68, 311782), (136, 155891)]