18860996

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{293}}^1$

素因数の和:345

約数の個数: 72

約数和(自身を含む): 43794240

約数和(自身を除く): 24933244

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 76, 77, 121, 133, 154, 209, 242, 266, 293, 308, 418, 484, 532, 586, 836, 847, 1172, 1463, 1694, 2051, 2299, 2926, 3223, 3388, 4102, 4598, 5567, 5852, 6446, 8204, 9196, 11134, 12892, 16093, 22268, 22561, 32186, 35453, 38969, 45122, 61237, 64372, 70906, 77938, 90244, 122474, 141812, 155876, 244948, 248171, 428659, 496342, 673607, 857318, 992684, 1347214, 1714636, 2694428, 4715249, 9430498, 18860996]

約数ペア:

[(1, 18860996), (2, 9430498), (4, 4715249), (7, 2694428), (11, 1714636), (14, 1347214), (19, 992684), (22, 857318), (28, 673607), (38, 496342), (44, 428659), (76, 248171), (77, 244948), (121, 155876), (133, 141812), (154, 122474), (209, 90244), (242, 77938), (266, 70906), (293, 64372), (308, 61237), (418, 45122), (484, 38969), (532, 35453), (586, 32186), (836, 22561), (847, 22268), (1172, 16093), (1463, 12892), (1694, 11134), (2051, 9196), (2299, 8204), (2926, 6446), (3223, 5852), (3388, 5567), (4102, 4598)]