217418516

素因数分解:

$2^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{80051}}^1$

素因数の和:80159

約数の個数: 24

約数和(自身を含む): 439325376

約数和(自身を除く): 221906860

約数列:

[1, 2, 4, 7, 14, 28, 97, 194, 388, 679, 1358, 2716, 80051, 160102, 320204, 560357, 1120714, 2241428, 7764947, 15529894, 31059788, 54354629, 108709258, 217418516]

約数ペア:

[(1, 217418516), (2, 108709258), (4, 54354629), (7, 31059788), (14, 15529894), (28, 7764947), (97, 2241428), (194, 1120714), (388, 560357), (679, 320204), (1358, 160102), (2716, 80051)]