18221390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{37}}^2$

素因数の和:114

約数の個数: 48

約数和(自身を含む): 37077264

約数和(自身を除く): 18855874

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 121, 185, 242, 370, 407, 605, 814, 1210, 1331, 1369, 2035, 2662, 2738, 4070, 4477, 6655, 6845, 8954, 13310, 13690, 15059, 22385, 30118, 44770, 49247, 75295, 98494, 150590, 165649, 246235, 331298, 492470, 828245, 1656490, 1822139, 3644278, 9110695, 18221390]

約数ペア:

[(1, 18221390), (2, 9110695), (5, 3644278), (10, 1822139), (11, 1656490), (22, 828245), (37, 492470), (55, 331298), (74, 246235), (110, 165649), (121, 150590), (185, 98494), (242, 75295), (370, 49247), (407, 44770), (605, 30118), (814, 22385), (1210, 15059), (1331, 13690), (1369, 13310), (2035, 8954), (2662, 6845), (2738, 6655), (4070, 4477)]