21379503

素因数分解:

$3^1\times {\mathrm{19}}^3\times {\mathrm{1039}}^1$

素因数の和:1099

約数の個数: 16

約数和(自身を含む): 30118400

約数和(自身を除く): 8738897

約数列:

[1, 3, 19, 57, 361, 1039, 1083, 3117, 6859, 19741, 20577, 59223, 375079, 1125237, 7126501, 21379503]

約数ペア:

[(1, 21379503), (3, 7126501), (19, 1125237), (57, 375079), (361, 59223), (1039, 20577), (1083, 19741), (3117, 6859)]