19809456

素因数分解:

$2^4\times 3^1\times {\mathrm{311}}^1\times {\mathrm{1327}}^1$

素因数の和:1649

約数の個数: 40

約数和(自身を含む): 51377664

約数和(自身を除く): 31568208

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 311, 622, 933, 1244, 1327, 1866, 2488, 2654, 3732, 3981, 4976, 5308, 7464, 7962, 10616, 14928, 15924, 21232, 31848, 63696, 412697, 825394, 1238091, 1650788, 2476182, 3301576, 4952364, 6603152, 9904728, 19809456]

約数ペア:

[(1, 19809456), (2, 9904728), (3, 6603152), (4, 4952364), (6, 3301576), (8, 2476182), (12, 1650788), (16, 1238091), (24, 825394), (48, 412697), (311, 63696), (622, 31848), (933, 21232), (1244, 15924), (1327, 14928), (1866, 10616), (2488, 7962), (2654, 7464), (3732, 5308), (3981, 4976)]