21999399

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{1667}}^1$

素因数の和:1806

約数の個数: 16

約数和(自身を含む): 30264192

約数和(自身を除く): 8264793

約数列:

[1, 3, 53, 83, 159, 249, 1667, 4399, 5001, 13197, 88351, 138361, 265053, 415083, 7333133, 21999399]

約数ペア:

[(1, 21999399), (3, 7333133), (53, 415083), (83, 265053), (159, 138361), (249, 88351), (1667, 13197), (4399, 5001)]