20987682

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{2129}}^1$

素因数の和:2218

約数の個数: 32

約数和(自身を含む): 44167680

約数和(自身を除く): 23179998

約数列:

[1, 2, 3, 6, 31, 53, 62, 93, 106, 159, 186, 318, 1643, 2129, 3286, 4258, 4929, 6387, 9858, 12774, 65999, 112837, 131998, 197997, 225674, 338511, 395994, 677022, 3497947, 6995894, 10493841, 20987682]

約数ペア:

[(1, 20987682), (2, 10493841), (3, 6995894), (6, 3497947), (31, 677022), (53, 395994), (62, 338511), (93, 225674), (106, 197997), (159, 131998), (186, 112837), (318, 65999), (1643, 12774), (2129, 9858), (3286, 6387), (4258, 4929)]