71521191

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{16453}}^1$

素因数の和:16492

約数の個数: 32

約数和(自身を含む): 126366720

約数和(自身を除く): 54845529

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 483, 621, 1449, 4347, 16453, 49359, 115171, 148077, 345513, 378419, 444231, 1036539, 1135257, 2648933, 3109617, 3405771, 7946799, 10217313, 23840397, 71521191]

約数ペア:

[(1, 71521191), (3, 23840397), (7, 10217313), (9, 7946799), (21, 3405771), (23, 3109617), (27, 2648933), (63, 1135257), (69, 1036539), (161, 444231), (189, 378419), (207, 345513), (483, 148077), (621, 115171), (1449, 49359), (4347, 16453)]