389525.0000000

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:211

約数の個数: 32

約数和(自身を含む): 8709120

約数和(自身を除く): 3268461

約数列:

[1, 3, 7, 21, 41, 71, 89, 123, 213, 267, 287, 497, 623, 861, 1491, 1869, 2911, 3649, 6319, 8733, 10947, 18957, 20377, 25543, 44233, 61131, 76629, 132699, 259079, 777237, 1813553, 5440659]

約数ペア:

[(1, 5440659), (3, 1813553), (7, 777237), (21, 259079), (41, 132699), (71, 76629), (89, 61131), (123, 44233), (213, 25543), (267, 20377), (287, 18957), (497, 10947), (623, 8733), (861, 6319), (1491, 3649), (1869, 2911)]