21379744

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{39301}}^1$

素因数の和:39328

約数の個数: 24

約数和(自身を含む): 44568468

約数和(自身を除く): 23188724

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 272, 544, 39301, 78602, 157204, 314408, 628816, 668117, 1257632, 1336234, 2672468, 5344936, 10689872, 21379744]

約数ペア:

[(1, 21379744), (2, 10689872), (4, 5344936), (8, 2672468), (16, 1336234), (17, 1257632), (32, 668117), (34, 628816), (68, 314408), (136, 157204), (272, 78602), (544, 39301)]