19557296

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{111121}}^1$

素因数の和:111140

約数の個数: 20

約数和(自身を含む): 41337384

約数和(自身を除く): 21780088

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 111121, 222242, 444484, 888968, 1222331, 1777936, 2444662, 4889324, 9778648, 19557296]

約数ペア:

[(1, 19557296), (2, 9778648), (4, 4889324), (8, 2444662), (11, 1777936), (16, 1222331), (22, 888968), (44, 444484), (88, 222242), (176, 111121)]