20910292

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{2467}}^1$

素因数の和:2647

約数の個数: 24

約数和(自身を含む): 39665696

約数和(自身を除く): 18755404

約数列:

[1, 2, 4, 13, 26, 52, 163, 326, 652, 2119, 2467, 4238, 4934, 8476, 9868, 32071, 64142, 128284, 402121, 804242, 1608484, 5227573, 10455146, 20910292]

約数ペア:

[(1, 20910292), (2, 10455146), (4, 5227573), (13, 1608484), (26, 804242), (52, 402121), (163, 128284), (326, 64142), (652, 32071), (2119, 9868), (2467, 8476), (4238, 4934)]