21679000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:210

約数の個数: 128

約数和(自身を含む): 61401600

約数和(自身を除く): 39722600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 25, 28, 35, 38, 40, 50, 56, 70, 76, 95, 100, 125, 133, 140, 152, 163, 175, 190, 200, 250, 266, 280, 326, 350, 380, 475, 500, 532, 652, 665, 700, 760, 815, 875, 950, 1000, 1064, 1141, 1304, 1330, 1400, 1630, 1750, 1900, 2282, 2375, 2660, 3097, 3260, 3325, 3500, 3800, 4075, 4564, 4750, 5320, 5705, 6194, 6520, 6650, 7000, 8150, 9128, 9500, 11410, 12388, 13300, 15485, 16300, 16625, 19000, 20375, 21679, 22820, 24776, 26600, 28525, 30970, 32600, 33250, 40750, 43358, 45640, 57050, 61940, 66500, 77425, 81500, 86716, 108395, 114100, 123880, 133000, 142625, 154850, 163000, 173432, 216790, 228200, 285250, 309700, 387125, 433580, 541975, 570500, 619400, 774250, 867160, 1083950, 1141000, 1548500, 2167900, 2709875, 3097000, 4335800, 5419750, 10839500, 21679000]

約数ペア:

[(1, 21679000), (2, 10839500), (4, 5419750), (5, 4335800), (7, 3097000), (8, 2709875), (10, 2167900), (14, 1548500), (19, 1141000), (20, 1083950), (25, 867160), (28, 774250), (35, 619400), (38, 570500), (40, 541975), (50, 433580), (56, 387125), (70, 309700), (76, 285250), (95, 228200), (100, 216790), (125, 173432), (133, 163000), (140, 154850), (152, 142625), (163, 133000), (175, 123880), (190, 114100), (200, 108395), (250, 86716), (266, 81500), (280, 77425), (326, 66500), (350, 61940), (380, 57050), (475, 45640), (500, 43358), (532, 40750), (652, 33250), (665, 32600), (700, 30970), (760, 28525), (815, 26600), (875, 24776), (950, 22820), (1000, 21679), (1064, 20375), (1141, 19000), (1304, 16625), (1330, 16300), (1400, 15485), (1630, 13300), (1750, 12388), (1900, 11410), (2282, 9500), (2375, 9128), (2660, 8150), (3097, 7000), (3260, 6650), (3325, 6520), (3500, 6194), (3800, 5705), (4075, 5320), (4564, 4750)]