19939491

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{15493}}^1$

素因数の和:15523

約数の個数: 24

約数和(自身を含む): 33838896

約数和(自身を除く): 13899405

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1287, 15493, 46479, 139437, 170423, 201409, 511269, 604227, 1533807, 1812681, 2215499, 6646497, 19939491]

約数ペア:

[(1, 19939491), (3, 6646497), (9, 2215499), (11, 1812681), (13, 1533807), (33, 604227), (39, 511269), (99, 201409), (117, 170423), (143, 139437), (429, 46479), (1287, 15493)]