20701564

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{911}}^1$

素因数の和:970

約数の個数: 48

約数和(自身を含む): 42900480

約数和(自身を除く): 22198916

約数列:

[1, 2, 4, 13, 19, 23, 26, 38, 46, 52, 76, 92, 247, 299, 437, 494, 598, 874, 911, 988, 1196, 1748, 1822, 3644, 5681, 11362, 11843, 17309, 20953, 22724, 23686, 34618, 41906, 47372, 69236, 83812, 225017, 272389, 398107, 450034, 544778, 796214, 900068, 1089556, 1592428, 5175391, 10350782, 20701564]

約数ペア:

[(1, 20701564), (2, 10350782), (4, 5175391), (13, 1592428), (19, 1089556), (23, 900068), (26, 796214), (38, 544778), (46, 450034), (52, 398107), (76, 272389), (92, 225017), (247, 83812), (299, 69236), (437, 47372), (494, 41906), (598, 34618), (874, 23686), (911, 22724), (988, 20953), (1196, 17309), (1748, 11843), (1822, 11362), (3644, 5681)]