21077654

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1109}}^1$

素因数の和:1184

約数の個数: 32

約数和(自身を含む): 36923040

約数和(自身を除く): 15845386

約数列:

[1, 2, 13, 17, 26, 34, 43, 86, 221, 442, 559, 731, 1109, 1118, 1462, 2218, 9503, 14417, 18853, 19006, 28834, 37706, 47687, 95374, 245089, 490178, 619931, 810679, 1239862, 1621358, 10538827, 21077654]

約数ペア:

[(1, 21077654), (2, 10538827), (13, 1621358), (17, 1239862), (26, 810679), (34, 619931), (43, 490178), (86, 245089), (221, 95374), (442, 47687), (559, 37706), (731, 28834), (1109, 19006), (1118, 18853), (1462, 14417), (2218, 9503)]