2100981505

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1396001}}^1$

素因数の和:1396056

約数の個数: 16

約数和(自身を含む): 2948356224

約数和(自身を除く): 847374719

約数列:

[1, 5, 7, 35, 43, 215, 301, 1505, 1396001, 6980005, 9772007, 48860035, 60028043, 300140215, 420196301, 2100981505]

約数ペア:

[(1, 2100981505), (5, 420196301), (7, 300140215), (35, 60028043), (43, 48860035), (215, 9772007), (301, 6980005), (1505, 1396001)]