20691295

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{1063}}^1$

素因数の和:1314

約数の個数: 16

約数和(自身を含む): 26429760

約数和(自身を除く): 5738465

約数列:

[1, 5, 17, 85, 229, 1063, 1145, 3893, 5315, 18071, 19465, 90355, 243427, 1217135, 4138259, 20691295]

約数ペア:

[(1, 20691295), (5, 4138259), (17, 1217135), (85, 243427), (229, 90355), (1063, 19465), (1145, 18071), (3893, 5315)]