21970746

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1373}}^1$

素因数の和:1515

約数の個数: 48

約数和(自身を含む): 54872064

約数和(自身を除く): 32901318

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 127, 254, 381, 762, 889, 1143, 1373, 1778, 2286, 2667, 2746, 4119, 5334, 8001, 8238, 9611, 12357, 16002, 19222, 24714, 28833, 57666, 86499, 172998, 174371, 348742, 523113, 1046226, 1220597, 1569339, 2441194, 3138678, 3661791, 7323582, 10985373, 21970746]

約数ペア:

[(1, 21970746), (2, 10985373), (3, 7323582), (6, 3661791), (7, 3138678), (9, 2441194), (14, 1569339), (18, 1220597), (21, 1046226), (42, 523113), (63, 348742), (126, 174371), (127, 172998), (254, 86499), (381, 57666), (762, 28833), (889, 24714), (1143, 19222), (1373, 16002), (1778, 12357), (2286, 9611), (2667, 8238), (2746, 8001), (4119, 5334)]