21280922

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{1667}}^1$

素因数の和:2173

約数の個数: 16

約数和(自身を含む): 34467552

約数和(自身を除く): 13186630

約数列:

[1, 2, 13, 26, 491, 982, 1667, 3334, 6383, 12766, 21671, 43342, 818497, 1636994, 10640461, 21280922]

約数ペア:

[(1, 21280922), (2, 10640461), (13, 1636994), (26, 818497), (491, 43342), (982, 21671), (1667, 12766), (3334, 6383)]