19874323

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:211

約数の個数: 32

約数和(自身を含む): 25574400

約数和(自身を除く): 5700077

約数列:

[1, 7, 19, 23, 73, 89, 133, 161, 437, 511, 623, 1387, 1679, 1691, 2047, 3059, 6497, 9709, 11753, 11837, 14329, 31901, 38893, 45479, 123443, 149431, 223307, 272251, 864101, 1046017, 2839189, 19874323]

約数ペア:

[(1, 19874323), (7, 2839189), (19, 1046017), (23, 864101), (73, 272251), (89, 223307), (133, 149431), (161, 123443), (437, 45479), (511, 38893), (623, 31901), (1387, 14329), (1679, 11837), (1691, 11753), (2047, 9709), (3059, 6497)]