13272728

素因数分解:

$2^3\times 7^4\times {\mathrm{691}}^1$

素因数の和:725

約数の個数: 40

約数和(自身を含む): 29074380

約数和(自身を除く): 15801652

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 691, 1372, 1382, 2401, 2744, 2764, 4802, 4837, 5528, 9604, 9674, 19208, 19348, 33859, 38696, 67718, 135436, 237013, 270872, 474026, 948052, 1659091, 1896104, 3318182, 6636364, 13272728]

約数ペア:

[(1, 13272728), (2, 6636364), (4, 3318182), (7, 1896104), (8, 1659091), (14, 948052), (28, 474026), (49, 270872), (56, 237013), (98, 135436), (196, 67718), (343, 38696), (392, 33859), (686, 19348), (691, 19208), (1372, 9674), (1382, 9604), (2401, 5528), (2744, 4837), (2764, 4802)]