71780191

素因数分解:

$7^1\times {\mathrm{29}}^2\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:291

約数の個数: 24

約数和(自身を含む): 86542560

約数和(自身を除く): 14762369

約数列:

[1, 7, 29, 89, 137, 203, 623, 841, 959, 2581, 3973, 5887, 12193, 18067, 27811, 74849, 85351, 115217, 353597, 523943, 806519, 2475179, 10254313, 71780191]

約数ペア:

[(1, 71780191), (7, 10254313), (29, 2475179), (89, 806519), (137, 523943), (203, 353597), (623, 115217), (841, 85351), (959, 74849), (2581, 27811), (3973, 18067), (5887, 12193)]