18856719

素因数分解:

$3^4\times 7^2\times {\mathrm{4751}}^1$

素因数の和:4777

約数の個数: 30

約数和(自身を含む): 32774544

約数和(自身を除く): 13917825

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 4751, 14253, 33257, 42759, 99771, 128277, 232799, 299313, 384831, 698397, 897939, 2095191, 2693817, 6285573, 18856719]

約数ペア:

[(1, 18856719), (3, 6285573), (7, 2693817), (9, 2095191), (21, 897939), (27, 698397), (49, 384831), (63, 299313), (81, 232799), (147, 128277), (189, 99771), (441, 42759), (567, 33257), (1323, 14253), (3969, 4751)]