19561068

素因数分解:

$2^2\times 3^3\times {\mathrm{71}}^1\times {\mathrm{2551}}^1$

素因数の和:2635

約数の個数: 48

約数和(自身を含む): 51448320

約数和(自身を除く): 31887252

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 71, 108, 142, 213, 284, 426, 639, 852, 1278, 1917, 2551, 2556, 3834, 5102, 7653, 7668, 10204, 15306, 22959, 30612, 45918, 68877, 91836, 137754, 181121, 275508, 362242, 543363, 724484, 1086726, 1630089, 2173452, 3260178, 4890267, 6520356, 9780534, 19561068]

約数ペア:

[(1, 19561068), (2, 9780534), (3, 6520356), (4, 4890267), (6, 3260178), (9, 2173452), (12, 1630089), (18, 1086726), (27, 724484), (36, 543363), (54, 362242), (71, 275508), (108, 181121), (142, 137754), (213, 91836), (284, 68877), (426, 45918), (639, 30612), (852, 22959), (1278, 15306), (1917, 10204), (2551, 7668), (2556, 7653), (3834, 5102)]