20680668

素因数分解:

$2^2\times 3^2\times {\mathrm{157}}^1\times {\mathrm{3659}}^1$

素因数の和:3826

約数の個数: 36

約数和(自身を含む): 52623480

約数和(自身を除く): 31942812

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 157, 314, 471, 628, 942, 1413, 1884, 2826, 3659, 5652, 7318, 10977, 14636, 21954, 32931, 43908, 65862, 131724, 574463, 1148926, 1723389, 2297852, 3446778, 5170167, 6893556, 10340334, 20680668]

約数ペア:

[(1, 20680668), (2, 10340334), (3, 6893556), (4, 5170167), (6, 3446778), (9, 2297852), (12, 1723389), (18, 1148926), (36, 574463), (157, 131724), (314, 65862), (471, 43908), (628, 32931), (942, 21954), (1413, 14636), (1884, 10977), (2826, 7318), (3659, 5652)]