21187992

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:485

約数の個数: 96

約数和(自身を含む): 63201600

約数和(自身を除く): 42013608

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 43, 49, 56, 84, 86, 98, 129, 147, 168, 172, 196, 258, 294, 301, 344, 392, 419, 516, 588, 602, 838, 903, 1032, 1176, 1204, 1257, 1676, 1806, 2107, 2408, 2514, 2933, 3352, 3612, 4214, 5028, 5866, 6321, 7224, 8428, 8799, 10056, 11732, 12642, 16856, 17598, 18017, 20531, 23464, 25284, 35196, 36034, 41062, 50568, 54051, 61593, 70392, 72068, 82124, 108102, 123186, 126119, 144136, 164248, 216204, 246372, 252238, 378357, 432408, 492744, 504476, 756714, 882833, 1008952, 1513428, 1765666, 2648499, 3026856, 3531332, 5296998, 7062664, 10593996, 21187992]

約数ペア:

[(1, 21187992), (2, 10593996), (3, 7062664), (4, 5296998), (6, 3531332), (7, 3026856), (8, 2648499), (12, 1765666), (14, 1513428), (21, 1008952), (24, 882833), (28, 756714), (42, 504476), (43, 492744), (49, 432408), (56, 378357), (84, 252238), (86, 246372), (98, 216204), (129, 164248), (147, 144136), (168, 126119), (172, 123186), (196, 108102), (258, 82124), (294, 72068), (301, 70392), (344, 61593), (392, 54051), (419, 50568), (516, 41062), (588, 36034), (602, 35196), (838, 25284), (903, 23464), (1032, 20531), (1176, 18017), (1204, 17598), (1257, 16856), (1676, 12642), (1806, 11732), (2107, 10056), (2408, 8799), (2514, 8428), (2933, 7224), (3352, 6321), (3612, 5866), (4214, 5028)]