20491638908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{216641}}^1$

素因数の和:216782

約数の個数: 48

約数和(自身を含む): 41272900704

約数和(自身を除く): 20781261796

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 107, 214, 221, 428, 442, 884, 1391, 1819, 2782, 3638, 5564, 7276, 23647, 47294, 94588, 216641, 433282, 866564, 2816333, 3682897, 5632666, 7365794, 11265332, 14731588, 23180587, 46361174, 47877661, 92722348, 95755322, 191510644, 301347631, 394069979, 602695262, 788139958, 1205390524, 1576279916, 5122909727, 10245819454, 20491638908]

約数ペア:

[(1, 20491638908), (2, 10245819454), (4, 5122909727), (13, 1576279916), (17, 1205390524), (26, 788139958), (34, 602695262), (52, 394069979), (68, 301347631), (107, 191510644), (214, 95755322), (221, 92722348), (428, 47877661), (442, 46361174), (884, 23180587), (1391, 14731588), (1819, 11265332), (2782, 7365794), (3638, 5632666), (5564, 3682897), (7276, 2816333), (23647, 866564), (47294, 433282), (94588, 216641)]