19891512

素因数分解:

$2^3\times 3^2\times {\mathrm{431}}^1\times {\mathrm{641}}^1$

素因数の和:1084

約数の個数: 48

約数和(自身を含む): 54082080

約数和(自身を除く): 34190568

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 431, 641, 862, 1282, 1293, 1724, 1923, 2564, 2586, 3448, 3846, 3879, 5128, 5172, 5769, 7692, 7758, 10344, 11538, 15384, 15516, 23076, 31032, 46152, 276271, 552542, 828813, 1105084, 1657626, 2210168, 2486439, 3315252, 4972878, 6630504, 9945756, 19891512]

約数ペア:

[(1, 19891512), (2, 9945756), (3, 6630504), (4, 4972878), (6, 3315252), (8, 2486439), (9, 2210168), (12, 1657626), (18, 1105084), (24, 828813), (36, 552542), (72, 276271), (431, 46152), (641, 31032), (862, 23076), (1282, 15516), (1293, 15384), (1724, 11538), (1923, 10344), (2564, 7758), (2586, 7692), (3448, 5769), (3846, 5172), (3879, 5128)]