64784447

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 83349504

約数和(自身を除く): 18565057

約数列:

[1, 7, 13, 37, 71, 91, 259, 271, 481, 497, 923, 1897, 2627, 3367, 3523, 6461, 10027, 18389, 19241, 24661, 34151, 70189, 130351, 134687, 239057, 250133, 711917, 912457, 1750931, 4983419, 9254921, 64784447]

約数ペア:

[(1, 64784447), (7, 9254921), (13, 4983419), (37, 1750931), (71, 912457), (91, 711917), (259, 250133), (271, 239057), (481, 134687), (497, 130351), (923, 70189), (1897, 34151), (2627, 24661), (3367, 19241), (3523, 18389), (6461, 10027)]