20903685

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{839}}^1$

素因数の和:1009

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 15868155

約数列:

[1, 3, 5, 11, 15, 33, 55, 151, 165, 453, 755, 839, 1661, 2265, 2517, 4195, 4983, 8305, 9229, 12585, 24915, 27687, 46145, 126689, 138435, 380067, 633445, 1393579, 1900335, 4180737, 6967895, 20903685]

約数ペア:

[(1, 20903685), (3, 6967895), (5, 4180737), (11, 1900335), (15, 1393579), (33, 633445), (55, 380067), (151, 138435), (165, 126689), (453, 46145), (755, 27687), (839, 24915), (1661, 12585), (2265, 9229), (2517, 8305), (4195, 4983)]