81674229

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{541}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 138405120

約数和(自身を除く): 56730891

約数列:

[1, 3, 7, 13, 21, 39, 49, 79, 91, 147, 237, 273, 541, 553, 637, 1027, 1623, 1659, 1911, 3081, 3787, 3871, 7033, 7189, 11361, 11613, 21099, 21567, 26509, 42739, 49231, 50323, 79527, 128217, 147693, 150969, 299173, 344617, 555607, 897519, 1033851, 1666821, 2094211, 3889249, 6282633, 11667747, 27224743, 81674229]

約数ペア:

[(1, 81674229), (3, 27224743), (7, 11667747), (13, 6282633), (21, 3889249), (39, 2094211), (49, 1666821), (79, 1033851), (91, 897519), (147, 555607), (237, 344617), (273, 299173), (541, 150969), (553, 147693), (637, 128217), (1027, 79527), (1623, 50323), (1659, 49231), (1911, 42739), (3081, 26509), (3787, 21567), (3871, 21099), (7033, 11613), (7189, 11361)]