21282695

素因数分解:

$5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{4027}}^1$

素因数の和:4190

約数の個数: 16

約数和(自身を含む): 29388288

約数和(自身を除く): 8105593

約数列:

[1, 5, 7, 35, 151, 755, 1057, 4027, 5285, 20135, 28189, 140945, 608077, 3040385, 4256539, 21282695]

約数ペア:

[(1, 21282695), (5, 4256539), (7, 3040385), (35, 608077), (151, 140945), (755, 28189), (1057, 20135), (4027, 5285)]