19737688

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{317}}^1$

素因数の和:547

約数の個数: 32

約数和(自身を含む): 38198160

約数和(自身を除く): 18460472

約数列:

[1, 2, 4, 8, 43, 86, 172, 181, 317, 344, 362, 634, 724, 1268, 1448, 2536, 7783, 13631, 15566, 27262, 31132, 54524, 57377, 62264, 109048, 114754, 229508, 459016, 2467211, 4934422, 9868844, 19737688]

約数ペア:

[(1, 19737688), (2, 9868844), (4, 4934422), (8, 2467211), (43, 459016), (86, 229508), (172, 114754), (181, 109048), (317, 62264), (344, 57377), (362, 54524), (634, 31132), (724, 27262), (1268, 15566), (1448, 13631), (2536, 7783)]