19851645

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{5231}}^1$

素因数の和:5273

約数の個数: 32

約数和(自身を含む): 36163584

約数和(自身を除く): 16311939

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 165, 253, 345, 759, 1265, 3795, 5231, 15693, 26155, 57541, 78465, 120313, 172623, 287705, 360939, 601565, 863115, 1323443, 1804695, 3970329, 6617215, 19851645]

約数ペア:

[(1, 19851645), (3, 6617215), (5, 3970329), (11, 1804695), (15, 1323443), (23, 863115), (33, 601565), (55, 360939), (69, 287705), (115, 172623), (165, 120313), (253, 78465), (345, 57541), (759, 26155), (1265, 15693), (3795, 5231)]