21519303

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{1667}}^1$

素因数の和:2014

約数の個数: 16

約数和(自身を含む): 31011456

約数和(自身を除く): 9492153

約数列:

[1, 3, 13, 39, 331, 993, 1667, 4303, 5001, 12909, 21671, 65013, 551777, 1655331, 7173101, 21519303]

約数ペア:

[(1, 21519303), (3, 7173101), (13, 1655331), (39, 551777), (331, 65013), (993, 21671), (1667, 12909), (4303, 5001)]