20672806

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:305

約数の個数: 48

約数和(自身を含む): 39923712

約数和(自身を除く): 19250906

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 127, 151, 154, 254, 302, 539, 889, 1057, 1078, 1397, 1661, 1778, 2114, 2794, 3322, 6223, 7399, 9779, 11627, 12446, 14798, 19177, 19558, 23254, 38354, 68453, 81389, 134239, 136906, 162778, 210947, 268478, 421894, 939673, 1476629, 1879346, 2953258, 10336403, 20672806]

約数ペア:

[(1, 20672806), (2, 10336403), (7, 2953258), (11, 1879346), (14, 1476629), (22, 939673), (49, 421894), (77, 268478), (98, 210947), (127, 162778), (151, 136906), (154, 134239), (254, 81389), (302, 68453), (539, 38354), (889, 23254), (1057, 19558), (1078, 19177), (1397, 14798), (1661, 12446), (1778, 11627), (2114, 9779), (2794, 7399), (3322, 6223)]