19735216

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{13859}}^1$

素因数の和:13956

約数の個数: 20

約数和(自身を含む): 38669400

約数和(自身を除く): 18934184

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 13859, 27718, 55436, 110872, 221744, 1233451, 2466902, 4933804, 9867608, 19735216]

約数ペア:

[(1, 19735216), (2, 9867608), (4, 4933804), (8, 2466902), (16, 1233451), (89, 221744), (178, 110872), (356, 55436), (712, 27718), (1424, 13859)]