189338331

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^2$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 320457984

約数和(自身を除く): 131119653

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 127, 129, 273, 301, 381, 559, 889, 903, 1651, 1677, 2667, 3913, 4953, 5461, 11557, 11739, 16129, 16383, 34671, 38227, 48387, 70993, 112903, 114681, 209677, 212979, 338709, 496951, 629031, 693547, 1467739, 1490853, 2080641, 4403217, 4854829, 9016111, 14564487, 27048333, 63112777, 189338331]

約数ペア:

[(1, 189338331), (3, 63112777), (7, 27048333), (13, 14564487), (21, 9016111), (39, 4854829), (43, 4403217), (91, 2080641), (127, 1490853), (129, 1467739), (273, 693547), (301, 629031), (381, 496951), (559, 338709), (889, 212979), (903, 209677), (1651, 114681), (1677, 112903), (2667, 70993), (3913, 48387), (4953, 38227), (5461, 34671), (11557, 16383), (11739, 16129)]