21280702

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{7541}}^1$

素因数の和:7643

約数の個数: 16

約数和(自身を含む): 34210512

約数和(自身を除く): 12929810

約数列:

[1, 2, 17, 34, 83, 166, 1411, 2822, 7541, 15082, 128197, 256394, 625903, 1251806, 10640351, 21280702]

約数ペア:

[(1, 21280702), (2, 10640351), (17, 1251806), (34, 625903), (83, 256394), (166, 128197), (1411, 15082), (2822, 7541)]