21445736

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{206209}}^1$

素因数の和:206228

約数の個数: 16

約数和(自身を含む): 43304100

約数和(自身を除く): 21858364

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 206209, 412418, 824836, 1649672, 2680717, 5361434, 10722868, 21445736]

約数ペア:

[(1, 21445736), (2, 10722868), (4, 5361434), (8, 2680717), (13, 1649672), (26, 824836), (52, 412418), (104, 206209)]