19747788

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{563}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 48007680

約数和(自身を除く): 28259892

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 79, 111, 148, 158, 222, 237, 316, 444, 474, 563, 948, 1126, 1689, 2252, 2923, 3378, 5846, 6756, 8769, 11692, 17538, 20831, 35076, 41662, 44477, 62493, 83324, 88954, 124986, 133431, 177908, 249972, 266862, 533724, 1645649, 3291298, 4936947, 6582596, 9873894, 19747788]

約数ペア:

[(1, 19747788), (2, 9873894), (3, 6582596), (4, 4936947), (6, 3291298), (12, 1645649), (37, 533724), (74, 266862), (79, 249972), (111, 177908), (148, 133431), (158, 124986), (222, 88954), (237, 83324), (316, 62493), (444, 44477), (474, 41662), (563, 35076), (948, 20831), (1126, 17538), (1689, 11692), (2252, 8769), (2923, 6756), (3378, 5846)]