18719631

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{12919}}^1$

素因数の和:12955

約数の個数: 24

約数和(自身を含む): 32248320

約数和(自身を除く): 13528689

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 12919, 38757, 90433, 116271, 271299, 297137, 813897, 891411, 2079959, 2674233, 6239877, 18719631]

約数ペア:

[(1, 18719631), (3, 6239877), (7, 2674233), (9, 2079959), (21, 891411), (23, 813897), (63, 297137), (69, 271299), (161, 116271), (207, 90433), (483, 38757), (1449, 12919)]