19403978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{761}}^1$

素因数の和:854

約数の個数: 32

約数和(自身を含む): 34015680

約数和(自身を除く): 14611702

約数列:

[1, 2, 11, 19, 22, 38, 61, 122, 209, 418, 671, 761, 1159, 1342, 1522, 2318, 8371, 12749, 14459, 16742, 25498, 28918, 46421, 92842, 159049, 318098, 510631, 881999, 1021262, 1763998, 9701989, 19403978]

約数ペア:

[(1, 19403978), (2, 9701989), (11, 1763998), (19, 1021262), (22, 881999), (38, 510631), (61, 318098), (122, 159049), (209, 92842), (418, 46421), (671, 28918), (761, 25498), (1159, 16742), (1342, 14459), (1522, 12749), (2318, 8371)]