20690836

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{2221}}^1$

素因数の和:2379

約数の個数: 24

約数和(自身を含む): 38636136

約数和(自身を除く): 17945300

約数列:

[1, 2, 4, 17, 34, 68, 137, 274, 548, 2221, 2329, 4442, 4658, 8884, 9316, 37757, 75514, 151028, 304277, 608554, 1217108, 5172709, 10345418, 20690836]

約数ペア:

[(1, 20690836), (2, 10345418), (4, 5172709), (17, 1217108), (34, 608554), (68, 304277), (137, 151028), (274, 75514), (548, 37757), (2221, 9316), (2329, 8884), (4442, 4658)]