18666123

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{541}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 29970432

約数和(自身を除く): 11304309

約数列:

[1, 3, 7, 21, 31, 53, 93, 159, 217, 371, 541, 651, 1113, 1623, 1643, 3787, 4929, 11361, 11501, 16771, 28673, 34503, 50313, 86019, 117397, 200711, 352191, 602133, 888863, 2666589, 6222041, 18666123]

約数ペア:

[(1, 18666123), (3, 6222041), (7, 2666589), (21, 888863), (31, 602133), (53, 352191), (93, 200711), (159, 117397), (217, 86019), (371, 50313), (541, 34503), (651, 28673), (1113, 16771), (1623, 11501), (1643, 11361), (3787, 4929)]