19996166

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1\times {\mathrm{653}}^1$

素因数の和:967

約数の個数: 16

約数和(自身を含む): 30654288

約数和(自身を除く): 10658122

約数列:

[1, 2, 61, 122, 251, 502, 653, 1306, 15311, 30622, 39833, 79666, 163903, 327806, 9998083, 19996166]

約数ペア:

[(1, 19996166), (2, 9998083), (61, 327806), (122, 163903), (251, 79666), (502, 39833), (653, 30622), (1306, 15311)]