21040600

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1$

素因数の和:162

約数の個数: 144

約数和(自身を含む): 60431400

約数和(自身を除く): 39390800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 25, 28, 35, 38, 40, 49, 50, 56, 70, 76, 95, 98, 100, 113, 133, 140, 152, 175, 190, 196, 200, 226, 245, 266, 280, 350, 380, 392, 452, 475, 490, 532, 565, 665, 700, 760, 791, 904, 931, 950, 980, 1064, 1130, 1225, 1330, 1400, 1582, 1862, 1900, 1960, 2147, 2260, 2450, 2660, 2825, 3164, 3325, 3724, 3800, 3955, 4294, 4520, 4655, 4900, 5320, 5537, 5650, 6328, 6650, 7448, 7910, 8588, 9310, 9800, 10735, 11074, 11300, 13300, 15029, 15820, 17176, 18620, 19775, 21470, 22148, 22600, 23275, 26600, 27685, 30058, 31640, 37240, 39550, 42940, 44296, 46550, 53675, 55370, 60116, 75145, 79100, 85880, 93100, 105203, 107350, 110740, 120232, 138425, 150290, 158200, 186200, 210406, 214700, 221480, 276850, 300580, 375725, 420812, 429400, 526015, 553700, 601160, 751450, 841624, 1052030, 1107400, 1502900, 2104060, 2630075, 3005800, 4208120, 5260150, 10520300, 21040600]

約数ペア:

[(1, 21040600), (2, 10520300), (4, 5260150), (5, 4208120), (7, 3005800), (8, 2630075), (10, 2104060), (14, 1502900), (19, 1107400), (20, 1052030), (25, 841624), (28, 751450), (35, 601160), (38, 553700), (40, 526015), (49, 429400), (50, 420812), (56, 375725), (70, 300580), (76, 276850), (95, 221480), (98, 214700), (100, 210406), (113, 186200), (133, 158200), (140, 150290), (152, 138425), (175, 120232), (190, 110740), (196, 107350), (200, 105203), (226, 93100), (245, 85880), (266, 79100), (280, 75145), (350, 60116), (380, 55370), (392, 53675), (452, 46550), (475, 44296), (490, 42940), (532, 39550), (565, 37240), (665, 31640), (700, 30058), (760, 27685), (791, 26600), (904, 23275), (931, 22600), (950, 22148), (980, 21470), (1064, 19775), (1130, 18620), (1225, 17176), (1330, 15820), (1400, 15029), (1582, 13300), (1862, 11300), (1900, 11074), (1960, 10735), (2147, 9800), (2260, 9310), (2450, 8588), (2660, 7910), (2825, 7448), (3164, 6650), (3325, 6328), (3724, 5650), (3800, 5537), (3955, 5320), (4294, 4900), (4520, 4655)]