19778886

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{383}}^1$

素因数の和:561

約数の個数: 48

約数和(自身を含む): 45527040

約数和(自身を除く): 25748154

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 151, 171, 302, 342, 383, 453, 766, 906, 1149, 1359, 2298, 2718, 2869, 3447, 5738, 6894, 7277, 8607, 14554, 17214, 21831, 25821, 43662, 51642, 57833, 65493, 115666, 130986, 173499, 346998, 520497, 1040994, 1098827, 2197654, 3296481, 6592962, 9889443, 19778886]

約数ペア:

[(1, 19778886), (2, 9889443), (3, 6592962), (6, 3296481), (9, 2197654), (18, 1098827), (19, 1040994), (38, 520497), (57, 346998), (114, 173499), (151, 130986), (171, 115666), (302, 65493), (342, 57833), (383, 51642), (453, 43662), (766, 25821), (906, 21831), (1149, 17214), (1359, 14554), (2298, 8607), (2718, 7277), (2869, 6894), (3447, 5738)]