20877876

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{13487}}^1$

素因数の和:13540

約数の個数: 36

約数和(自身を含む): 54005952

約数和(自身を除く): 33128076

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 13487, 26974, 40461, 53948, 80922, 121383, 161844, 242766, 485532, 579941, 1159882, 1739823, 2319764, 3479646, 5219469, 6959292, 10438938, 20877876]

約数ペア:

[(1, 20877876), (2, 10438938), (3, 6959292), (4, 5219469), (6, 3479646), (9, 2319764), (12, 1739823), (18, 1159882), (36, 579941), (43, 485532), (86, 242766), (129, 161844), (172, 121383), (258, 80922), (387, 53948), (516, 40461), (774, 26974), (1548, 13487)]