18477994

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{4721}}^1$

素因数の和:4845

約数の個数: 16

約数和(自身を含む): 29465280

約数和(自身を除く): 10987286

約数列:

[1, 2, 19, 38, 103, 206, 1957, 3914, 4721, 9442, 89699, 179398, 486263, 972526, 9238997, 18477994]

約数ペア:

[(1, 18477994), (2, 9238997), (19, 972526), (38, 486263), (103, 179398), (206, 89699), (1957, 9442), (3914, 4721)]