21379800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2741}}^1$

素因数の和:2773

約数の個数: 96

約数和(自身を含む): 71401680

約数和(自身を除く): 50021880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 25, 26, 30, 39, 40, 50, 52, 60, 65, 75, 78, 100, 104, 120, 130, 150, 156, 195, 200, 260, 300, 312, 325, 390, 520, 600, 650, 780, 975, 1300, 1560, 1950, 2600, 2741, 3900, 5482, 7800, 8223, 10964, 13705, 16446, 21928, 27410, 32892, 35633, 41115, 54820, 65784, 68525, 71266, 82230, 106899, 109640, 137050, 142532, 164460, 178165, 205575, 213798, 274100, 285064, 328920, 356330, 411150, 427596, 534495, 548200, 712660, 822300, 855192, 890825, 1068990, 1425320, 1644600, 1781650, 2137980, 2672475, 3563300, 4275960, 5344950, 7126600, 10689900, 21379800]

約数ペア:

[(1, 21379800), (2, 10689900), (3, 7126600), (4, 5344950), (5, 4275960), (6, 3563300), (8, 2672475), (10, 2137980), (12, 1781650), (13, 1644600), (15, 1425320), (20, 1068990), (24, 890825), (25, 855192), (26, 822300), (30, 712660), (39, 548200), (40, 534495), (50, 427596), (52, 411150), (60, 356330), (65, 328920), (75, 285064), (78, 274100), (100, 213798), (104, 205575), (120, 178165), (130, 164460), (150, 142532), (156, 137050), (195, 109640), (200, 106899), (260, 82230), (300, 71266), (312, 68525), (325, 65784), (390, 54820), (520, 41115), (600, 35633), (650, 32892), (780, 27410), (975, 21928), (1300, 16446), (1560, 13705), (1950, 10964), (2600, 8223), (2741, 7800), (3900, 5482)]