21856255

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{1723}}^1$

素因数の和:1830

約数の個数: 16

約数和(自身を含む): 27308160

約数和(自身を除く): 5451905

約数列:

[1, 5, 43, 59, 215, 295, 1723, 2537, 8615, 12685, 74089, 101657, 370445, 508285, 4371251, 21856255]

約数ペア:

[(1, 21856255), (5, 4371251), (43, 508285), (59, 370445), (215, 101657), (295, 74089), (1723, 12685), (2537, 8615)]