21253704

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{367}}^1$

素因数の和:522

約数の個数: 64

約数和(自身を含む): 56524800

約数和(自身を除く): 35271096

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 127, 152, 228, 254, 367, 381, 456, 508, 734, 762, 1016, 1101, 1468, 1524, 2202, 2413, 2936, 3048, 4404, 4826, 6973, 7239, 8808, 9652, 13946, 14478, 19304, 20919, 27892, 28956, 41838, 46609, 55784, 57912, 83676, 93218, 139827, 167352, 186436, 279654, 372872, 559308, 885571, 1118616, 1771142, 2656713, 3542284, 5313426, 7084568, 10626852, 21253704]

約数ペア:

[(1, 21253704), (2, 10626852), (3, 7084568), (4, 5313426), (6, 3542284), (8, 2656713), (12, 1771142), (19, 1118616), (24, 885571), (38, 559308), (57, 372872), (76, 279654), (114, 186436), (127, 167352), (152, 139827), (228, 93218), (254, 83676), (367, 57912), (381, 55784), (456, 46609), (508, 41838), (734, 28956), (762, 27892), (1016, 20919), (1101, 19304), (1468, 14478), (1524, 13946), (2202, 9652), (2413, 8808), (2936, 7239), (3048, 6973), (4404, 4826)]