20957055

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{28513}}^1$

素因数の和:28535

約数の個数: 24

約数和(自身を含む): 39007152

約数和(自身を除く): 18050097

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 28513, 85539, 142565, 199591, 427695, 598773, 997955, 1397137, 2993865, 4191411, 6985685, 20957055]

約数ペア:

[(1, 20957055), (3, 6985685), (5, 4191411), (7, 2993865), (15, 1397137), (21, 997955), (35, 598773), (49, 427695), (105, 199591), (147, 142565), (245, 85539), (735, 28513)]