21005414

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{7879}}^1$

素因数の和:7955

約数の個数: 16

約数和(自身を含む): 33285120

約数和(自身を除く): 12279706

約数列:

[1, 2, 31, 43, 62, 86, 1333, 2666, 7879, 15758, 244249, 338797, 488498, 677594, 10502707, 21005414]

約数ペア:

[(1, 21005414), (2, 10502707), (31, 677594), (43, 488498), (62, 338797), (86, 244249), (1333, 15758), (2666, 7879)]