19990166

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{337}}^1$

素因数の和:588

約数の個数: 32

約数和(自身を含む): 36341760

約数和(自身を除く): 16351594

約数列:

[1, 2, 7, 14, 19, 38, 133, 223, 266, 337, 446, 674, 1561, 2359, 3122, 4237, 4718, 6403, 8474, 12806, 29659, 44821, 59318, 75151, 89642, 150302, 526057, 1052114, 1427869, 2855738, 9995083, 19990166]

約数ペア:

[(1, 19990166), (2, 9995083), (7, 2855738), (14, 1427869), (19, 1052114), (38, 526057), (133, 150302), (223, 89642), (266, 75151), (337, 59318), (446, 44821), (674, 29659), (1561, 12806), (2359, 8474), (3122, 6403), (4237, 4718)]