20512201983

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{10733753}}^1$

素因数の和:10733783

約数の個数: 24

約数和(自身を含む): 34262142768

約数和(自身を除く): 13749940785

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 10733753, 32201259, 75136271, 139538789, 225408813, 418616367, 525953897, 976771523, 1577861691, 2930314569, 6837400661, 20512201983]

約数ペア:

[(1, 20512201983), (3, 6837400661), (7, 2930314569), (13, 1577861691), (21, 976771523), (39, 525953897), (49, 418616367), (91, 225408813), (147, 139538789), (273, 75136271), (637, 32201259), (1911, 10733753)]