21218338

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{4259}}^1$

素因数の和:4361

約数の個数: 16

約数和(自身を含む): 33125760

約数和(自身を除く): 11907422

約数列:

[1, 2, 47, 53, 94, 106, 2491, 4259, 4982, 8518, 200173, 225727, 400346, 451454, 10609169, 21218338]

約数ペア:

[(1, 21218338), (2, 10609169), (47, 451454), (53, 400346), (94, 225727), (106, 200173), (2491, 8518), (4259, 4982)]