290142237

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{1307}}^1$

素因数の和:1390

約数の個数: 48

約数和(自身を含む): 498756096

約数和(自身を除く): 208613859

約数列:

[1, 3, 7, 11, 21, 31, 33, 77, 93, 217, 231, 341, 651, 961, 1023, 1307, 2387, 2883, 3921, 6727, 7161, 9149, 10571, 14377, 20181, 27447, 31713, 40517, 43131, 73997, 100639, 121551, 221991, 283619, 301917, 445687, 850857, 1256027, 1337061, 3119809, 3768081, 8792189, 9359427, 13816297, 26376567, 41448891, 96714079, 290142237]

約数ペア:

[(1, 290142237), (3, 96714079), (7, 41448891), (11, 26376567), (21, 13816297), (31, 9359427), (33, 8792189), (77, 3768081), (93, 3119809), (217, 1337061), (231, 1256027), (341, 850857), (651, 445687), (961, 301917), (1023, 283619), (1307, 221991), (2387, 121551), (2883, 100639), (3921, 73997), (6727, 43131), (7161, 40517), (9149, 31713), (10571, 27447), (14377, 20181)]