19842459

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{5591}}^1$

素因数の和:5627

約数の個数: 24

約数和(自身を含む): 32746752

約数和(自身を除く): 12904293

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, 3549, 5591, 16773, 39137, 72683, 117411, 218049, 508781, 944879, 1526343, 2834637, 6614153, 19842459]

約数ペア:

[(1, 19842459), (3, 6614153), (7, 2834637), (13, 1526343), (21, 944879), (39, 508781), (91, 218049), (169, 117411), (273, 72683), (507, 39137), (1183, 16773), (3549, 5591)]