20357257076

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{891767}}^1$

素因数の和:892223

約数の個数: 24

約数和(自身を含む): 38453036160

約数和(自身を除く): 18095779084

約数列:

[1, 2, 4, 13, 26, 52, 439, 878, 1756, 5707, 11414, 22828, 891767, 1783534, 3567068, 11592971, 23185942, 46371884, 391485713, 782971426, 1565942852, 5089314269, 10178628538, 20357257076]

約数ペア:

[(1, 20357257076), (2, 10178628538), (4, 5089314269), (13, 1565942852), (26, 782971426), (52, 391485713), (439, 46371884), (878, 23185942), (1756, 11592971), (5707, 3567068), (11414, 1783534), (22828, 891767)]