16720572

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{643}}^1$

素因数の和:858

約数の個数: 48

約数和(自身を含む): 42844032

約数和(自身を除く): 26123460

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 197, 394, 591, 643, 788, 1182, 1286, 1929, 2167, 2364, 2572, 3858, 4334, 6501, 7073, 7716, 8668, 13002, 14146, 21219, 26004, 28292, 42438, 84876, 126671, 253342, 380013, 506684, 760026, 1393381, 1520052, 2786762, 4180143, 5573524, 8360286, 16720572]

約数ペア:

[(1, 16720572), (2, 8360286), (3, 5573524), (4, 4180143), (6, 2786762), (11, 1520052), (12, 1393381), (22, 760026), (33, 506684), (44, 380013), (66, 253342), (132, 126671), (197, 84876), (394, 42438), (591, 28292), (643, 26004), (788, 21219), (1182, 14146), (1286, 13002), (1929, 8668), (2167, 7716), (2364, 7073), (2572, 6501), (3858, 4334)]