21336272

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1567}}^1$

素因数の和:1635

約数の個数: 40

約数和(自身を含む): 44330496

約数和(自身を除く): 22994224

約数列:

[1, 2, 4, 8, 16, 23, 37, 46, 74, 92, 148, 184, 296, 368, 592, 851, 1567, 1702, 3134, 3404, 6268, 6808, 12536, 13616, 25072, 36041, 57979, 72082, 115958, 144164, 231916, 288328, 463832, 576656, 927664, 1333517, 2667034, 5334068, 10668136, 21336272]

約数ペア:

[(1, 21336272), (2, 10668136), (4, 5334068), (8, 2667034), (16, 1333517), (23, 927664), (37, 576656), (46, 463832), (74, 288328), (92, 231916), (148, 144164), (184, 115958), (296, 72082), (368, 57979), (592, 36041), (851, 25072), (1567, 13616), (1702, 12536), (3134, 6808), (3404, 6268)]