20216536

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3457}}^1$

素因数の和:3523

約数の個数: 32

約数和(自身を含む): 41081040

約数和(自身を除く): 20864504

約数列:

[1, 2, 4, 8, 17, 34, 43, 68, 86, 136, 172, 344, 731, 1462, 2924, 3457, 5848, 6914, 13828, 27656, 58769, 117538, 148651, 235076, 297302, 470152, 594604, 1189208, 2527067, 5054134, 10108268, 20216536]

約数ペア:

[(1, 20216536), (2, 10108268), (4, 5054134), (8, 2527067), (17, 1189208), (34, 594604), (43, 470152), (68, 297302), (86, 235076), (136, 148651), (172, 117538), (344, 58769), (731, 27656), (1462, 13828), (2924, 6914), (3457, 5848)]