20343128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4549}}^1$

素因数の和:4611

約数の個数: 32

約数和(自身を含む): 42042000

約数和(自身を除く): 21698872

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 4549, 9098, 18196, 36392, 59137, 118274, 195607, 236548, 391214, 473096, 782428, 1564856, 2542891, 5085782, 10171564, 20343128]

約数ペア:

[(1, 20343128), (2, 10171564), (4, 5085782), (8, 2542891), (13, 1564856), (26, 782428), (43, 473096), (52, 391214), (86, 236548), (104, 195607), (172, 118274), (344, 59137), (559, 36392), (1118, 18196), (2236, 9098), (4472, 4549)]