21168368

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101771}}^1$

素因数の和:101792

約数の個数: 20

約数和(自身を含む): 44169048

約数和(自身を除く): 23000680

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 101771, 203542, 407084, 814168, 1323023, 1628336, 2646046, 5292092, 10584184, 21168368]

約数ペア:

[(1, 21168368), (2, 10584184), (4, 5292092), (8, 2646046), (13, 1628336), (16, 1323023), (26, 814168), (52, 407084), (104, 203542), (208, 101771)]