19102028

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{647}}^1$

素因数の和:734

約数の個数: 36

約数和(自身を含む): 37403856

約数和(自身を除く): 18301828

約数列:

[1, 2, 4, 11, 22, 44, 61, 121, 122, 242, 244, 484, 647, 671, 1294, 1342, 2588, 2684, 7117, 7381, 14234, 14762, 28468, 29524, 39467, 78287, 78934, 156574, 157868, 313148, 434137, 868274, 1736548, 4775507, 9551014, 19102028]

約数ペア:

[(1, 19102028), (2, 9551014), (4, 4775507), (11, 1736548), (22, 868274), (44, 434137), (61, 313148), (121, 157868), (122, 156574), (242, 78934), (244, 78287), (484, 39467), (647, 29524), (671, 28468), (1294, 14762), (1342, 14234), (2588, 7381), (2684, 7117)]