20742488

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{199447}}^1$

素因数の和:199466

約数の個数: 16

約数和(自身を含む): 41884080

約数和(自身を除く): 21141592

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 199447, 398894, 797788, 1595576, 2592811, 5185622, 10371244, 20742488]

約数ペア:

[(1, 20742488), (2, 10371244), (4, 5185622), (8, 2592811), (13, 1595576), (26, 797788), (52, 398894), (104, 199447)]