21587124

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1949}}^1$

素因数の和:2040

約数の個数: 48

約数和(自身を含む): 55036800

約数和(自身を除く): 33449676

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 71, 78, 142, 156, 213, 284, 426, 852, 923, 1846, 1949, 2769, 3692, 3898, 5538, 5847, 7796, 11076, 11694, 23388, 25337, 50674, 76011, 101348, 138379, 152022, 276758, 304044, 415137, 553516, 830274, 1660548, 1798927, 3597854, 5396781, 7195708, 10793562, 21587124]

約数ペア:

[(1, 21587124), (2, 10793562), (3, 7195708), (4, 5396781), (6, 3597854), (12, 1798927), (13, 1660548), (26, 830274), (39, 553516), (52, 415137), (71, 304044), (78, 276758), (142, 152022), (156, 138379), (213, 101348), (284, 76011), (426, 50674), (852, 25337), (923, 23388), (1846, 11694), (1949, 11076), (2769, 7796), (3692, 5847), (3898, 5538)]