219777621

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1\times {\mathrm{863}}^1$

素因数の和:1121

約数の個数: 32

約数和(自身を含む): 342171648

約数和(自身を除く): 122394027

約数列:

[1, 3, 7, 21, 67, 181, 201, 469, 543, 863, 1267, 1407, 2589, 3801, 6041, 12127, 18123, 36381, 57821, 84889, 156203, 173463, 254667, 404747, 468609, 1093421, 1214241, 3280263, 10465601, 31396803, 73259207, 219777621]

約数ペア:

[(1, 219777621), (3, 73259207), (7, 31396803), (21, 10465601), (67, 3280263), (181, 1214241), (201, 1093421), (469, 468609), (543, 404747), (863, 254667), (1267, 173463), (1407, 156203), (2589, 84889), (3801, 57821), (6041, 36381), (12127, 18123)]