21669410

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{887}}^1$

素因数の和:1250

約数の個数: 32

約数和(自身を含む): 44755200

約数和(自身を除く): 23085790

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 349, 698, 887, 1745, 1774, 2443, 3490, 4435, 4886, 6209, 8870, 12215, 12418, 24430, 31045, 62090, 309563, 619126, 1547815, 2166941, 3095630, 4333882, 10834705, 21669410]

約数ペア:

[(1, 21669410), (2, 10834705), (5, 4333882), (7, 3095630), (10, 2166941), (14, 1547815), (35, 619126), (70, 309563), (349, 62090), (698, 31045), (887, 24430), (1745, 12418), (1774, 12215), (2443, 8870), (3490, 6209), (4435, 4886)]