72015909

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{180491}}^1$

素因数の和:180520

約数の個数: 16

約数和(自身を含む): 115514880

約数和(自身を除く): 43498971

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 180491, 541473, 1263437, 3429329, 3790311, 10287987, 24005303, 72015909]

約数ペア:

[(1, 72015909), (3, 24005303), (7, 10287987), (19, 3790311), (21, 3429329), (57, 1263437), (133, 541473), (399, 180491)]