19997854

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{2273}}^1$

素因数の和:2411

約数の個数: 16

約数和(自身を含む): 30944592

約数和(自身を除く): 10946738

約数列:

[1, 2, 53, 83, 106, 166, 2273, 4399, 4546, 8798, 120469, 188659, 240938, 377318, 9998927, 19997854]

約数ペア:

[(1, 19997854), (2, 9998927), (53, 377318), (83, 240938), (106, 188659), (166, 120469), (2273, 8798), (4399, 4546)]