19911552084

素因数分解:

$2^2\times 3^3\times {\mathrm{821}}^1\times {\mathrm{224563}}^1$

素因数の和:225397

約数の個数: 48

約数和(自身を含む): 51685650240

約数和(自身を除く): 31774098156

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 821, 1642, 2463, 3284, 4926, 7389, 9852, 14778, 22167, 29556, 44334, 88668, 224563, 449126, 673689, 898252, 1347378, 2021067, 2694756, 4042134, 6063201, 8084268, 12126402, 24252804, 184366223, 368732446, 553098669, 737464892, 1106197338, 1659296007, 2212394676, 3318592014, 4977888021, 6637184028, 9955776042, 19911552084]

約数ペア:

[(1, 19911552084), (2, 9955776042), (3, 6637184028), (4, 4977888021), (6, 3318592014), (9, 2212394676), (12, 1659296007), (18, 1106197338), (27, 737464892), (36, 553098669), (54, 368732446), (108, 184366223), (821, 24252804), (1642, 12126402), (2463, 8084268), (3284, 6063201), (4926, 4042134), (7389, 2694756), (9852, 2021067), (14778, 1347378), (22167, 898252), (29556, 673689), (44334, 449126), (88668, 224563)]