20658582

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1291}}^1$

素因数の和:1433

約数の個数: 48

約数和(自身を含む): 51597312

約数和(自身を除く): 30938730

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 127, 254, 381, 762, 889, 1143, 1291, 1778, 2286, 2582, 2667, 3873, 5334, 7746, 8001, 9037, 11619, 16002, 18074, 23238, 27111, 54222, 81333, 162666, 163957, 327914, 491871, 983742, 1147699, 1475613, 2295398, 2951226, 3443097, 6886194, 10329291, 20658582]

約数ペア:

[(1, 20658582), (2, 10329291), (3, 6886194), (6, 3443097), (7, 2951226), (9, 2295398), (14, 1475613), (18, 1147699), (21, 983742), (42, 491871), (63, 327914), (126, 163957), (127, 162666), (254, 81333), (381, 54222), (762, 27111), (889, 23238), (1143, 18074), (1291, 16002), (1778, 11619), (2286, 9037), (2582, 8001), (2667, 7746), (3873, 5334)]