19789605

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{39979}}^1$

素因数の和:40001

約数の個数: 24

約数和(自身を含む): 37421280

約数和(自身を除く): 17631675

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 39979, 119937, 199895, 359811, 439769, 599685, 1319307, 1799055, 2198845, 3957921, 6596535, 19789605]

約数ペア:

[(1, 19789605), (3, 6596535), (5, 3957921), (9, 2198845), (11, 1799055), (15, 1319307), (33, 599685), (45, 439769), (55, 359811), (99, 199895), (165, 119937), (495, 39979)]