290425821

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1\times {\mathrm{547}}^1$

素因数の和:881

約数の個数: 32

約数和(自身を含む): 449061888

約数和(自身を除く): 158636067

約数列:

[1, 3, 7, 21, 131, 193, 393, 547, 579, 917, 1351, 1641, 2751, 3829, 4053, 11487, 25283, 71657, 75849, 105571, 176981, 214971, 316713, 501599, 530943, 738997, 1504797, 2216991, 13829801, 41489403, 96808607, 290425821]

約数ペア:

[(1, 290425821), (3, 96808607), (7, 41489403), (21, 13829801), (131, 2216991), (193, 1504797), (393, 738997), (547, 530943), (579, 501599), (917, 316713), (1351, 214971), (1641, 176981), (2751, 105571), (3829, 75849), (4053, 71657), (11487, 25283)]