21535045

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 31046400

約数和(自身を除く): 9511355

約数列:

[1, 5, 7, 35, 41, 43, 205, 215, 287, 301, 349, 1435, 1505, 1745, 1763, 2443, 8815, 12215, 12341, 14309, 15007, 61705, 71545, 75035, 100163, 105049, 500815, 525245, 615287, 3076435, 4307009, 21535045]

約数ペア:

[(1, 21535045), (5, 4307009), (7, 3076435), (35, 615287), (41, 525245), (43, 500815), (205, 105049), (215, 100163), (287, 75035), (301, 71545), (349, 61705), (1435, 15007), (1505, 14309), (1745, 12341), (1763, 12215), (2443, 8815)]