18404008

素因数分解:

$2^3\times 7^3\times {\mathrm{19}}^1\times {\mathrm{353}}^1$

素因数の和:399

約数の個数: 64

約数和(自身を含む): 42480000

約数和(自身を除く): 24075992

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 49, 56, 76, 98, 133, 152, 196, 266, 343, 353, 392, 532, 686, 706, 931, 1064, 1372, 1412, 1862, 2471, 2744, 2824, 3724, 4942, 6517, 6707, 7448, 9884, 13034, 13414, 17297, 19768, 26068, 26828, 34594, 46949, 52136, 53656, 69188, 93898, 121079, 138376, 187796, 242158, 328643, 375592, 484316, 657286, 968632, 1314572, 2300501, 2629144, 4601002, 9202004, 18404008]

約数ペア:

[(1, 18404008), (2, 9202004), (4, 4601002), (7, 2629144), (8, 2300501), (14, 1314572), (19, 968632), (28, 657286), (38, 484316), (49, 375592), (56, 328643), (76, 242158), (98, 187796), (133, 138376), (152, 121079), (196, 93898), (266, 69188), (343, 53656), (353, 52136), (392, 46949), (532, 34594), (686, 26828), (706, 26068), (931, 19768), (1064, 17297), (1372, 13414), (1412, 13034), (1862, 9884), (2471, 7448), (2744, 6707), (2824, 6517), (3724, 4942)]