21133792

素因数分解:

$2^5\times {\mathrm{73}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:275

約数の個数: 48

約数和(自身を含む): 43076880

約数和(自身を除く): 21943088

約数列:

[1, 2, 4, 8, 16, 32, 73, 83, 109, 146, 166, 218, 292, 332, 436, 584, 664, 872, 1168, 1328, 1744, 2336, 2656, 3488, 6059, 7957, 9047, 12118, 15914, 18094, 24236, 31828, 36188, 48472, 63656, 72376, 96944, 127312, 144752, 193888, 254624, 289504, 660431, 1320862, 2641724, 5283448, 10566896, 21133792]

約数ペア:

[(1, 21133792), (2, 10566896), (4, 5283448), (8, 2641724), (16, 1320862), (32, 660431), (73, 289504), (83, 254624), (109, 193888), (146, 144752), (166, 127312), (218, 96944), (292, 72376), (332, 63656), (436, 48472), (584, 36188), (664, 31828), (872, 24236), (1168, 18094), (1328, 15914), (1744, 12118), (2336, 9047), (2656, 7957), (3488, 6059)]