21044520

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{1193}}^1$

素因数の和:1224

約数の個数: 144

約数和(自身を含む): 79627860

約数和(自身を除く): 58583340

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 49, 56, 60, 63, 70, 72, 84, 90, 98, 105, 120, 126, 140, 147, 168, 180, 196, 210, 245, 252, 280, 294, 315, 360, 392, 420, 441, 490, 504, 588, 630, 735, 840, 882, 980, 1176, 1193, 1260, 1470, 1764, 1960, 2205, 2386, 2520, 2940, 3528, 3579, 4410, 4772, 5880, 5965, 7158, 8351, 8820, 9544, 10737, 11930, 14316, 16702, 17640, 17895, 21474, 23860, 25053, 28632, 33404, 35790, 41755, 42948, 47720, 50106, 53685, 58457, 66808, 71580, 75159, 83510, 85896, 100212, 107370, 116914, 125265, 143160, 150318, 167020, 175371, 200424, 214740, 233828, 250530, 292285, 300636, 334040, 350742, 375795, 429480, 467656, 501060, 526113, 584570, 601272, 701484, 751590, 876855, 1002120, 1052226, 1169140, 1402968, 1503180, 1753710, 2104452, 2338280, 2630565, 3006360, 3507420, 4208904, 5261130, 7014840, 10522260, 21044520]

約数ペア:

[(1, 21044520), (2, 10522260), (3, 7014840), (4, 5261130), (5, 4208904), (6, 3507420), (7, 3006360), (8, 2630565), (9, 2338280), (10, 2104452), (12, 1753710), (14, 1503180), (15, 1402968), (18, 1169140), (20, 1052226), (21, 1002120), (24, 876855), (28, 751590), (30, 701484), (35, 601272), (36, 584570), (40, 526113), (42, 501060), (45, 467656), (49, 429480), (56, 375795), (60, 350742), (63, 334040), (70, 300636), (72, 292285), (84, 250530), (90, 233828), (98, 214740), (105, 200424), (120, 175371), (126, 167020), (140, 150318), (147, 143160), (168, 125265), (180, 116914), (196, 107370), (210, 100212), (245, 85896), (252, 83510), (280, 75159), (294, 71580), (315, 66808), (360, 58457), (392, 53685), (420, 50106), (441, 47720), (490, 42948), (504, 41755), (588, 35790), (630, 33404), (735, 28632), (840, 25053), (882, 23860), (980, 21474), (1176, 17895), (1193, 17640), (1260, 16702), (1470, 14316), (1764, 11930), (1960, 10737), (2205, 9544), (2386, 8820), (2520, 8351), (2940, 7158), (3528, 5965), (3579, 5880), (4410, 4772)]