20187412

素因数分解:

$2^2\times 7^2\times {\mathrm{127}}^1\times {\mathrm{811}}^1$

素因数の和:956

約数の個数: 36

約数和(自身を含む): 41470464

約数和(自身を除く): 21283052

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 127, 196, 254, 508, 811, 889, 1622, 1778, 3244, 3556, 5677, 6223, 11354, 12446, 22708, 24892, 39739, 79478, 102997, 158956, 205994, 411988, 720979, 1441958, 2883916, 5046853, 10093706, 20187412]

約数ペア:

[(1, 20187412), (2, 10093706), (4, 5046853), (7, 2883916), (14, 1441958), (28, 720979), (49, 411988), (98, 205994), (127, 158956), (196, 102997), (254, 79478), (508, 39739), (811, 24892), (889, 22708), (1622, 12446), (1778, 11354), (3244, 6223), (3556, 5677)]