81438966

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{215447}}^1$

素因数の和:215465

約数の個数: 32

約数和(自身を含む): 206830080

約数和(自身を除く): 125391114

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 215447, 430894, 646341, 1292682, 1508129, 1939023, 3016258, 3878046, 4524387, 5817069, 9048774, 11634138, 13573161, 27146322, 40719483, 81438966]

約数ペア:

[(1, 81438966), (2, 40719483), (3, 27146322), (6, 13573161), (7, 11634138), (9, 9048774), (14, 5817069), (18, 4524387), (21, 3878046), (27, 3016258), (42, 1939023), (54, 1508129), (63, 1292682), (126, 646341), (189, 430894), (378, 215447)]