16620471

素因数分解:

$3^6\times 7^1\times {\mathrm{3257}}^1$

素因数の和:3282

約数の個数: 28

約数和(自身を含む): 28487952

約数和(自身を除く): 11867481

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 3257, 5103, 9771, 22799, 29313, 68397, 87939, 205191, 263817, 615573, 791451, 1846719, 2374353, 5540157, 16620471]

約数ペア:

[(1, 16620471), (3, 5540157), (7, 2374353), (9, 1846719), (21, 791451), (27, 615573), (63, 263817), (81, 205191), (189, 87939), (243, 68397), (567, 29313), (729, 22799), (1701, 9771), (3257, 5103)]