18990573

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{11447}}^1$

素因数の和:11536

約数の個数: 16

約数和(自身を含む): 29306880

約数和(自身を除く): 10316307

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 11447, 34341, 80129, 240387, 904313, 2712939, 6330191, 18990573]

約数ペア:

[(1, 18990573), (3, 6330191), (7, 2712939), (21, 904313), (79, 240387), (237, 80129), (553, 34341), (1659, 11447)]