223991999

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{12703}}^1$

素因数の和:12950

約数の個数: 16

約数和(自身を含む): 280504320

約数和(自身を除く): 56512321

約数列:

[1, 7, 11, 77, 229, 1603, 2519, 12703, 17633, 88921, 139733, 978131, 2908987, 20362909, 31998857, 223991999]

約数ペア:

[(1, 223991999), (7, 31998857), (11, 20362909), (77, 2908987), (229, 978131), (1603, 139733), (2519, 88921), (12703, 17633)]