21512503

素因数分解:

${\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:558

約数の個数: 16

約数和(自身を含む): 23639040

約数和(自身を除く): 2126537

約数列:

[1, 19, 37, 71, 431, 703, 1349, 2627, 8189, 15947, 30601, 49913, 302993, 581419, 1132237, 21512503]

約数ペア:

[(1, 21512503), (19, 1132237), (37, 581419), (71, 302993), (431, 49913), (703, 30601), (1349, 15947), (2627, 8189)]