21083535

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{223}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 40255488

約数和(自身を除く): 19171953

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 191, 223, 495, 573, 669, 955, 1115, 1719, 2007, 2101, 2453, 2865, 3345, 6303, 7359, 8595, 10035, 10505, 12265, 18909, 22077, 31515, 36795, 42593, 94545, 110385, 127779, 212965, 383337, 468523, 638895, 1405569, 1916685, 2342615, 4216707, 7027845, 21083535]

約数ペア:

[(1, 21083535), (3, 7027845), (5, 4216707), (9, 2342615), (11, 1916685), (15, 1405569), (33, 638895), (45, 468523), (55, 383337), (99, 212965), (165, 127779), (191, 110385), (223, 94545), (495, 42593), (573, 36795), (669, 31515), (955, 22077), (1115, 18909), (1719, 12265), (2007, 10505), (2101, 10035), (2453, 8595), (2865, 7359), (3345, 6303)]