20871376

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{76733}}^1$

素因数の和:76758

約数の個数: 20

約数和(自身を含む): 42817572

約数和(自身を除く): 21946196

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 76733, 153466, 306932, 613864, 1227728, 1304461, 2608922, 5217844, 10435688, 20871376]

約数ペア:

[(1, 20871376), (2, 10435688), (4, 5217844), (8, 2608922), (16, 1304461), (17, 1227728), (34, 613864), (68, 306932), (136, 153466), (272, 76733)]