21232770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54443}}^1$

素因数の和:54466

約数の個数: 32

約数和(自身を含む): 54879552

約数和(自身を除く): 33646782

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 54443, 108886, 163329, 272215, 326658, 544430, 707759, 816645, 1415518, 1633290, 2123277, 3538795, 4246554, 7077590, 10616385, 21232770]

約数ペア:

[(1, 21232770), (2, 10616385), (3, 7077590), (5, 4246554), (6, 3538795), (10, 2123277), (13, 1633290), (15, 1415518), (26, 816645), (30, 707759), (39, 544430), (65, 326658), (78, 272215), (130, 163329), (195, 108886), (390, 54443)]