81293499

素因数分解:

$3^2\times 7^2\times {\mathrm{337}}^1\times {\mathrm{547}}^1$

素因数の和:904

約数の個数: 36

約数和(自身を含む): 137250984

約数和(自身を除く): 55957485

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 337, 441, 547, 1011, 1641, 2359, 3033, 3829, 4923, 7077, 11487, 16513, 21231, 26803, 34461, 49539, 80409, 148617, 184339, 241227, 553017, 1290373, 1659051, 3871119, 9032611, 11613357, 27097833, 81293499]

約数ペア:

[(1, 81293499), (3, 27097833), (7, 11613357), (9, 9032611), (21, 3871119), (49, 1659051), (63, 1290373), (147, 553017), (337, 241227), (441, 184339), (547, 148617), (1011, 80409), (1641, 49539), (2359, 34461), (3033, 26803), (3829, 21231), (4923, 16513), (7077, 11487)]