18494973

素因数分解:

$3^5\times 7^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 32288256

約数和(自身を除く): 13793283

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 83, 131, 189, 243, 249, 393, 567, 581, 747, 917, 1179, 1701, 1743, 2241, 2751, 3537, 5229, 6723, 8253, 10611, 10873, 15687, 20169, 24759, 31833, 32619, 47061, 74277, 76111, 97857, 141183, 222831, 228333, 293571, 684999, 880713, 2054997, 2642139, 6164991, 18494973]

約数ペア:

[(1, 18494973), (3, 6164991), (7, 2642139), (9, 2054997), (21, 880713), (27, 684999), (63, 293571), (81, 228333), (83, 222831), (131, 141183), (189, 97857), (243, 76111), (249, 74277), (393, 47061), (567, 32619), (581, 31833), (747, 24759), (917, 20169), (1179, 15687), (1701, 10873), (1743, 10611), (2241, 8253), (2751, 6723), (3537, 5229)]