21237647536

素因数分解:

$2^4\times 7^1\times {\mathrm{1459}}^1\times {\mathrm{129967}}^1$

素因数の和:131441

約数の個数: 40

約数和(自身を含む): 47058813440

約数和(自身を除く): 25821165904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 1459, 2918, 5836, 10213, 11672, 20426, 23344, 40852, 81704, 129967, 163408, 259934, 519868, 909769, 1039736, 1819538, 2079472, 3639076, 7278152, 14556304, 189621853, 379243706, 758487412, 1327352971, 1516974824, 2654705942, 3033949648, 5309411884, 10618823768, 21237647536]

約数ペア:

[(1, 21237647536), (2, 10618823768), (4, 5309411884), (7, 3033949648), (8, 2654705942), (14, 1516974824), (16, 1327352971), (28, 758487412), (56, 379243706), (112, 189621853), (1459, 14556304), (2918, 7278152), (5836, 3639076), (10213, 2079472), (11672, 1819538), (20426, 1039736), (23344, 909769), (40852, 519868), (81704, 259934), (129967, 163408)]