19158357

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{41}}^2\times {\mathrm{131}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 27292320

約数和(自身を除く): 8133963

約数列:

[1, 3, 29, 41, 87, 123, 131, 393, 1189, 1681, 3567, 3799, 5043, 5371, 11397, 16113, 48749, 146247, 155759, 220211, 467277, 660633, 6386119, 19158357]

約数ペア:

[(1, 19158357), (3, 6386119), (29, 660633), (41, 467277), (87, 220211), (123, 155759), (131, 146247), (393, 48749), (1189, 16113), (1681, 11397), (3567, 5371), (3799, 5043)]