19991776

素因数分解:

$2^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2879}}^1$

素因数の和:2927

約数の個数: 48

約数和(自身を含む): 46448640

約数和(自身を除く): 26456864

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 112, 124, 217, 224, 248, 434, 496, 868, 992, 1736, 2879, 3472, 5758, 6944, 11516, 20153, 23032, 40306, 46064, 80612, 89249, 92128, 161224, 178498, 322448, 356996, 624743, 644896, 713992, 1249486, 1427984, 2498972, 2855968, 4997944, 9995888, 19991776]

約数ペア:

[(1, 19991776), (2, 9995888), (4, 4997944), (7, 2855968), (8, 2498972), (14, 1427984), (16, 1249486), (28, 713992), (31, 644896), (32, 624743), (56, 356996), (62, 322448), (112, 178498), (124, 161224), (217, 92128), (224, 89249), (248, 80612), (434, 46064), (496, 40306), (868, 23032), (992, 20153), (1736, 11516), (2879, 6944), (3472, 5758)]