19172991

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{3449}}^1$

素因数の和:3578

約数の個数: 16

約数和(自身を含む): 27324000

約数和(自身を除く): 8151009

約数列:

[1, 3, 17, 51, 109, 327, 1853, 3449, 5559, 10347, 58633, 175899, 375941, 1127823, 6390997, 19172991]

約数ペア:

[(1, 19172991), (3, 6390997), (17, 1127823), (51, 375941), (109, 175899), (327, 58633), (1853, 10347), (3449, 5559)]