18991968

素因数分解:

$2^5\times 3^1\times {\mathrm{181}}^1\times {\mathrm{1093}}^1$

素因数の和:1287

約数の個数: 48

約数和(自身を含む): 50175216

約数和(自身を除く): 31183248

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 181, 362, 543, 724, 1086, 1093, 1448, 2172, 2186, 2896, 3279, 4344, 4372, 5792, 6558, 8688, 8744, 13116, 17376, 17488, 26232, 34976, 52464, 104928, 197833, 395666, 593499, 791332, 1186998, 1582664, 2373996, 3165328, 4747992, 6330656, 9495984, 18991968]

約数ペア:

[(1, 18991968), (2, 9495984), (3, 6330656), (4, 4747992), (6, 3165328), (8, 2373996), (12, 1582664), (16, 1186998), (24, 791332), (32, 593499), (48, 395666), (96, 197833), (181, 104928), (362, 52464), (543, 34976), (724, 26232), (1086, 17488), (1093, 17376), (1448, 13116), (2172, 8744), (2186, 8688), (2896, 6558), (3279, 5792), (4344, 4372)]