21193760

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:298

約数の個数: 96

約数和(自身を含む): 58060800

約数和(自身を除く): 36867040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 127, 140, 149, 160, 224, 254, 280, 298, 508, 560, 596, 635, 745, 889, 1016, 1043, 1120, 1192, 1270, 1490, 1778, 2032, 2086, 2384, 2540, 2980, 3556, 4064, 4172, 4445, 4768, 5080, 5215, 5960, 7112, 8344, 8890, 10160, 10430, 11920, 14224, 16688, 17780, 18923, 20320, 20860, 23840, 28448, 33376, 35560, 37846, 41720, 71120, 75692, 83440, 94615, 132461, 142240, 151384, 166880, 189230, 264922, 302768, 378460, 529844, 605536, 662305, 756920, 1059688, 1324610, 1513840, 2119376, 2649220, 3027680, 4238752, 5298440, 10596880, 21193760]

約数ペア:

[(1, 21193760), (2, 10596880), (4, 5298440), (5, 4238752), (7, 3027680), (8, 2649220), (10, 2119376), (14, 1513840), (16, 1324610), (20, 1059688), (28, 756920), (32, 662305), (35, 605536), (40, 529844), (56, 378460), (70, 302768), (80, 264922), (112, 189230), (127, 166880), (140, 151384), (149, 142240), (160, 132461), (224, 94615), (254, 83440), (280, 75692), (298, 71120), (508, 41720), (560, 37846), (596, 35560), (635, 33376), (745, 28448), (889, 23840), (1016, 20860), (1043, 20320), (1120, 18923), (1192, 17780), (1270, 16688), (1490, 14224), (1778, 11920), (2032, 10430), (2086, 10160), (2384, 8890), (2540, 8344), (2980, 7112), (3556, 5960), (4064, 5215), (4172, 5080), (4445, 4768)]