21014567

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{1289}}^1$

素因数の和:1450

約数の個数: 16

約数和(自身を含む): 25634880

約数和(自身を除く): 4620313

約数列:

[1, 7, 17, 119, 137, 959, 1289, 2329, 9023, 16303, 21913, 153391, 176593, 1236151, 3002081, 21014567]

約数ペア:

[(1, 21014567), (7, 3002081), (17, 1236151), (119, 176593), (137, 153391), (959, 21913), (1289, 16303), (2329, 9023)]