20904728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{201007}}^1$

素因数の和:201026

約数の個数: 16

約数和(自身を含む): 42211680

約数和(自身を除く): 21306952

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 201007, 402014, 804028, 1608056, 2613091, 5226182, 10452364, 20904728]

約数ペア:

[(1, 20904728), (2, 10452364), (4, 5226182), (8, 2613091), (13, 1608056), (26, 804028), (52, 402014), (104, 201007)]