19905112

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{67247}}^1$

素因数の和:67290

約数の個数: 16

約数和(自身を含む): 38331360

約数和(自身を除く): 18426248

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 67247, 134494, 268988, 537976, 2488139, 4976278, 9952556, 19905112]

約数ペア:

[(1, 19905112), (2, 9952556), (4, 4976278), (8, 2488139), (37, 537976), (74, 268988), (148, 134494), (296, 67247)]