19909214

素因数分解:

$2^1\times {\mathrm{13}}^3\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 33929280

約数和(自身を除く): 14020066

約数列:

[1, 2, 13, 23, 26, 46, 169, 197, 299, 338, 394, 598, 2197, 2561, 3887, 4394, 4531, 5122, 7774, 9062, 33293, 50531, 58903, 66586, 101062, 117806, 432809, 765739, 865618, 1531478, 9954607, 19909214]

約数ペア:

[(1, 19909214), (2, 9954607), (13, 1531478), (23, 865618), (26, 765739), (46, 432809), (169, 117806), (197, 101062), (299, 66586), (338, 58903), (394, 50531), (598, 33293), (2197, 9062), (2561, 7774), (3887, 5122), (4394, 4531)]