19111988

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{503}}^1$

素因数の和:596

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 21530572

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 59, 92, 118, 161, 236, 322, 413, 503, 644, 826, 1006, 1357, 1652, 2012, 2714, 3521, 5428, 7042, 9499, 11569, 14084, 18998, 23138, 29677, 37996, 46276, 59354, 80983, 118708, 161966, 207739, 323932, 415478, 682571, 830956, 1365142, 2730284, 4777997, 9555994, 19111988]

約数ペア:

[(1, 19111988), (2, 9555994), (4, 4777997), (7, 2730284), (14, 1365142), (23, 830956), (28, 682571), (46, 415478), (59, 323932), (92, 207739), (118, 161966), (161, 118708), (236, 80983), (322, 59354), (413, 46276), (503, 37996), (644, 29677), (826, 23138), (1006, 18998), (1357, 14084), (1652, 11569), (2012, 9499), (2714, 7042), (3521, 5428)]