211687567

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{977}}^1\times {\mathrm{2381}}^1$

素因数の和:3378

約数の個数: 16

約数和(自身を含む): 260914752

約数和(自身を除く): 49227185

約数列:

[1, 7, 13, 91, 977, 2381, 6839, 12701, 16667, 30953, 88907, 216671, 2326237, 16283659, 30241081, 211687567]

約数ペア:

[(1, 211687567), (7, 30241081), (13, 16283659), (91, 2326237), (977, 216671), (2381, 88907), (6839, 30953), (12701, 16667)]