21053505

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127597}}^1$

素因数の和:127616

約数の個数: 16

約数和(自身を含む): 36748224

約数和(自身を除く): 15694719

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 127597, 382791, 637985, 1403567, 1913955, 4210701, 7017835, 21053505]

約数ペア:

[(1, 21053505), (3, 7017835), (5, 4210701), (11, 1913955), (15, 1403567), (33, 637985), (55, 382791), (165, 127597)]