991888545

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3889759}}^1$

素因数の和:3889784

約数の個数: 16

約数和(自身を含む): 1680376320

約数和(自身を除く): 688487775

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 3889759, 11669277, 19448795, 58346385, 66125903, 198377709, 330629515, 991888545]

約数ペア:

[(1, 991888545), (3, 330629515), (5, 198377709), (15, 66125903), (17, 58346385), (51, 19448795), (85, 11669277), (255, 3889759)]