27815487

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{433}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 47496960

約数和(自身を除く): 19681473

約数列:

[1, 3, 7, 19, 21, 23, 49, 57, 69, 133, 147, 161, 399, 433, 437, 483, 931, 1127, 1299, 1311, 2793, 3031, 3059, 3381, 8227, 9093, 9177, 9959, 21217, 21413, 24681, 29877, 57589, 63651, 64239, 69713, 172767, 189221, 209139, 403123, 487991, 567663, 1209369, 1324547, 1463973, 3973641, 9271829, 27815487]

約数ペア:

[(1, 27815487), (3, 9271829), (7, 3973641), (19, 1463973), (21, 1324547), (23, 1209369), (49, 567663), (57, 487991), (69, 403123), (133, 209139), (147, 189221), (161, 172767), (399, 69713), (433, 64239), (437, 63651), (483, 57589), (931, 29877), (1127, 24681), (1299, 21413), (1311, 21217), (2793, 9959), (3031, 9177), (3059, 9093), (3381, 8227)]