20968335

素因数分解:

$3^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1223}}^1$

素因数の和:1364

約数の個数: 32

約数和(自身を含む): 37601280

約数和(自身を除く): 16632945

約数列:

[1, 3, 5, 9, 15, 27, 45, 127, 135, 381, 635, 1143, 1223, 1905, 3429, 3669, 5715, 6115, 11007, 17145, 18345, 33021, 55035, 155321, 165105, 465963, 776605, 1397889, 2329815, 4193667, 6989445, 20968335]

約数ペア:

[(1, 20968335), (3, 6989445), (5, 4193667), (9, 2329815), (15, 1397889), (27, 776605), (45, 465963), (127, 165105), (135, 155321), (381, 55035), (635, 33021), (1143, 18345), (1223, 17145), (1905, 11007), (3429, 6115), (3669, 5715)]