20944858

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:171

約数の個数: 48

約数和(自身を含む): 37231488

約数和(自身を除く): 16286630

約数列:

[1, 2, 11, 22, 23, 46, 53, 71, 106, 121, 142, 242, 253, 506, 583, 781, 1166, 1219, 1562, 1633, 2438, 2783, 3266, 3763, 5566, 6413, 7526, 8591, 12826, 13409, 17182, 17963, 26818, 35926, 41393, 82786, 86549, 147499, 173098, 197593, 294998, 395186, 455323, 910646, 952039, 1904078, 10472429, 20944858]

約数ペア:

[(1, 20944858), (2, 10472429), (11, 1904078), (22, 952039), (23, 910646), (46, 455323), (53, 395186), (71, 294998), (106, 197593), (121, 173098), (142, 147499), (242, 86549), (253, 82786), (506, 41393), (583, 35926), (781, 26818), (1166, 17963), (1219, 17182), (1562, 13409), (1633, 12826), (2438, 8591), (2783, 7526), (3266, 6413), (3763, 5566)]