639211083

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{4817}}^1$

素因数の和:4987

約数の個数: 32

約数和(自身を含む): 999060480

約数和(自身を除く): 359849397

約数列:

[1, 3, 7, 21, 71, 89, 213, 267, 497, 623, 1491, 1869, 4817, 6319, 14451, 18957, 33719, 44233, 101157, 132699, 342007, 428713, 1026021, 1286139, 2394049, 3000991, 7182147, 9002973, 30438623, 91315869, 213070361, 639211083]

約数ペア:

[(1, 639211083), (3, 213070361), (7, 91315869), (21, 30438623), (71, 9002973), (89, 7182147), (213, 3000991), (267, 2394049), (497, 1286139), (623, 1026021), (1491, 428713), (1869, 342007), (4817, 132699), (6319, 101157), (14451, 44233), (18957, 33719)]