21006310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{463}}^1$

素因数の和:832

約数の個数: 32

約数和(自身を含む): 40924800

約数和(自身を除く): 19918490

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 349, 463, 698, 926, 1745, 2315, 3490, 4537, 4630, 6019, 9074, 12038, 22685, 30095, 45370, 60190, 161587, 323174, 807935, 1615870, 2100631, 4201262, 10503155, 21006310]

約数ペア:

[(1, 21006310), (2, 10503155), (5, 4201262), (10, 2100631), (13, 1615870), (26, 807935), (65, 323174), (130, 161587), (349, 60190), (463, 45370), (698, 30095), (926, 22685), (1745, 12038), (2315, 9074), (3490, 6019), (4537, 4630)]