1998123885

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{21841}}^1$

素因数の和:21978

約数の個数: 48

約数和(自身を含む): 3679940160

約数和(自身を除く): 1681816275

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 107, 171, 285, 321, 535, 855, 963, 1605, 2033, 4815, 6099, 10165, 18297, 21841, 30495, 65523, 91485, 109205, 196569, 327615, 414979, 982845, 1244937, 2074895, 2336987, 3734811, 6224685, 7010961, 11684935, 18674055, 21032883, 35054805, 44402753, 105164415, 133208259, 222013765, 399624777, 666041295, 1998123885]

約数ペア:

[(1, 1998123885), (3, 666041295), (5, 399624777), (9, 222013765), (15, 133208259), (19, 105164415), (45, 44402753), (57, 35054805), (95, 21032883), (107, 18674055), (171, 11684935), (285, 7010961), (321, 6224685), (535, 3734811), (855, 2336987), (963, 2074895), (1605, 1244937), (2033, 982845), (4815, 414979), (6099, 327615), (10165, 196569), (18297, 109205), (21841, 91485), (30495, 65523)]