208021807

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{641}}^1$

素因数の和:871

約数の個数: 24

約数和(自身を含む): 250302960

約数和(自身を除く): 42281153

約数列:

[1, 7, 37, 49, 179, 259, 641, 1253, 1813, 4487, 6623, 8771, 23717, 31409, 46361, 114739, 166019, 324527, 803173, 1162133, 4245343, 5622211, 29717401, 208021807]

約数ペア:

[(1, 208021807), (7, 29717401), (37, 5622211), (49, 4245343), (179, 1162133), (259, 803173), (641, 324527), (1253, 166019), (1813, 114739), (4487, 46361), (6623, 31409), (8771, 23717)]