20664182

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{661}}^1$

素因数の和:717

約数の個数: 48

約数和(自身を含む): 40752720

約数和(自身を除く): 20088538

約数列:

[1, 2, 7, 11, 14, 22, 29, 49, 58, 77, 98, 154, 203, 319, 406, 539, 638, 661, 1078, 1322, 1421, 2233, 2842, 4466, 4627, 7271, 9254, 14542, 15631, 19169, 31262, 32389, 38338, 50897, 64778, 101794, 134183, 210859, 268366, 356279, 421718, 712558, 939281, 1476013, 1878562, 2952026, 10332091, 20664182]

約数ペア:

[(1, 20664182), (2, 10332091), (7, 2952026), (11, 1878562), (14, 1476013), (22, 939281), (29, 712558), (49, 421718), (58, 356279), (77, 268366), (98, 210859), (154, 134183), (203, 101794), (319, 64778), (406, 50897), (539, 38338), (638, 32389), (661, 31262), (1078, 19169), (1322, 15631), (1421, 14542), (2233, 9254), (2842, 7271), (4466, 4627)]