18659216

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61379}}^1$

素因数の和:61406

約数の個数: 20

約数和(自身を含む): 38055600

約数和(自身を除く): 19396384

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 61379, 122758, 245516, 491032, 982064, 1166201, 2332402, 4664804, 9329608, 18659216]

約数ペア:

[(1, 18659216), (2, 9329608), (4, 4664804), (8, 2332402), (16, 1166201), (19, 982064), (38, 491032), (76, 245516), (152, 122758), (304, 61379)]