19982984

素因数分解:

$2^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2683}}^1$

素因数の和:2722

約数の個数: 48

約数和(自身を含む): 45896400

約数和(自身を除く): 25913416

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 49, 56, 76, 98, 133, 152, 196, 266, 392, 532, 931, 1064, 1862, 2683, 3724, 5366, 7448, 10732, 18781, 21464, 37562, 50977, 75124, 101954, 131467, 150248, 203908, 262934, 356839, 407816, 525868, 713678, 1051736, 1427356, 2497873, 2854712, 4995746, 9991492, 19982984]

約数ペア:

[(1, 19982984), (2, 9991492), (4, 4995746), (7, 2854712), (8, 2497873), (14, 1427356), (19, 1051736), (28, 713678), (38, 525868), (49, 407816), (56, 356839), (76, 262934), (98, 203908), (133, 150248), (152, 131467), (196, 101954), (266, 75124), (392, 50977), (532, 37562), (931, 21464), (1064, 18781), (1862, 10732), (2683, 7448), (3724, 5366)]