21682616

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{159431}}^1$

素因数の和:159454

約数の個数: 16

約数和(自身を含む): 43046640

約数和(自身を除く): 21364024

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 159431, 318862, 637724, 1275448, 2710327, 5420654, 10841308, 21682616]

約数ペア:

[(1, 21682616), (2, 10841308), (4, 5420654), (8, 2710327), (17, 1275448), (34, 637724), (68, 318862), (136, 159431)]