81642253

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{17971}}^1$

素因数の和:18048

約数の個数: 16

約数和(自身を含む): 103518720

約数和(自身を除く): 21876467

約数列:

[1, 7, 11, 59, 77, 413, 649, 4543, 17971, 125797, 197681, 1060289, 1383767, 7422023, 11663179, 81642253]

約数ペア:

[(1, 81642253), (7, 11663179), (11, 7422023), (59, 1383767), (77, 1060289), (413, 197681), (649, 125797), (4543, 17971)]