21340586

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{4357}}^1$

素因数の和:4469

約数の個数: 16

約数和(自身を含む): 33469440

約数和(自身を除く): 12128854

約数列:

[1, 2, 31, 62, 79, 158, 2449, 4357, 4898, 8714, 135067, 270134, 344203, 688406, 10670293, 21340586]

約数ペア:

[(1, 21340586), (2, 10670293), (31, 688406), (62, 344203), (79, 270134), (158, 135067), (2449, 8714), (4357, 4898)]