20345168

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{13109}}^1$

素因数の和:13214

約数の個数: 20

約数和(自身を含む): 39828180

約数和(自身を除く): 19483012

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 776, 1552, 13109, 26218, 52436, 104872, 209744, 1271573, 2543146, 5086292, 10172584, 20345168]

約数ペア:

[(1, 20345168), (2, 10172584), (4, 5086292), (8, 2543146), (16, 1271573), (97, 209744), (194, 104872), (388, 52436), (776, 26218), (1552, 13109)]