21891800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{823}}^1$

素因数の和:865

約数の個数: 96

約数和(自身を含む): 61305600

約数和(自身を除く): 39413800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 25, 28, 35, 38, 40, 50, 56, 70, 76, 95, 100, 133, 140, 152, 175, 190, 200, 266, 280, 350, 380, 475, 532, 665, 700, 760, 823, 950, 1064, 1330, 1400, 1646, 1900, 2660, 3292, 3325, 3800, 4115, 5320, 5761, 6584, 6650, 8230, 11522, 13300, 15637, 16460, 20575, 23044, 26600, 28805, 31274, 32920, 41150, 46088, 57610, 62548, 78185, 82300, 109459, 115220, 125096, 144025, 156370, 164600, 218918, 230440, 288050, 312740, 390925, 437836, 547295, 576100, 625480, 781850, 875672, 1094590, 1152200, 1563700, 2189180, 2736475, 3127400, 4378360, 5472950, 10945900, 21891800]

約数ペア:

[(1, 21891800), (2, 10945900), (4, 5472950), (5, 4378360), (7, 3127400), (8, 2736475), (10, 2189180), (14, 1563700), (19, 1152200), (20, 1094590), (25, 875672), (28, 781850), (35, 625480), (38, 576100), (40, 547295), (50, 437836), (56, 390925), (70, 312740), (76, 288050), (95, 230440), (100, 218918), (133, 164600), (140, 156370), (152, 144025), (175, 125096), (190, 115220), (200, 109459), (266, 82300), (280, 78185), (350, 62548), (380, 57610), (475, 46088), (532, 41150), (665, 32920), (700, 31274), (760, 28805), (823, 26600), (950, 23044), (1064, 20575), (1330, 16460), (1400, 15637), (1646, 13300), (1900, 11522), (2660, 8230), (3292, 6650), (3325, 6584), (3800, 5761), (4115, 5320)]