31419171

素因数分解:

$3^6\times 7^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:203

約数の個数: 56

約数和(自身を含む): 55401984

約数和(自身を除く): 23982813

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 81, 131, 141, 189, 243, 329, 393, 423, 567, 729, 917, 987, 1179, 1269, 1701, 2751, 2961, 3537, 3807, 5103, 6157, 8253, 8883, 10611, 11421, 18471, 24759, 26649, 31833, 34263, 43099, 55413, 74277, 79947, 95499, 129297, 166239, 222831, 239841, 387891, 498717, 668493, 1163673, 1496151, 3491019, 4488453, 10473057, 31419171]

約数ペア:

[(1, 31419171), (3, 10473057), (7, 4488453), (9, 3491019), (21, 1496151), (27, 1163673), (47, 668493), (63, 498717), (81, 387891), (131, 239841), (141, 222831), (189, 166239), (243, 129297), (329, 95499), (393, 79947), (423, 74277), (567, 55413), (729, 43099), (917, 34263), (987, 31833), (1179, 26649), (1269, 24759), (1701, 18471), (2751, 11421), (2961, 10611), (3537, 8883), (3807, 8253), (5103, 6157)]