21401996

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{6317}}^1$

素因数の和:6350

約数の個数: 36

約数和(自身を含む): 47056464

約数和(自身を除く): 25654468

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 154, 242, 308, 484, 847, 1694, 3388, 6317, 12634, 25268, 44219, 69487, 88438, 138974, 176876, 277948, 486409, 764357, 972818, 1528714, 1945636, 3057428, 5350499, 10700998, 21401996]

約数ペア:

[(1, 21401996), (2, 10700998), (4, 5350499), (7, 3057428), (11, 1945636), (14, 1528714), (22, 972818), (28, 764357), (44, 486409), (77, 277948), (121, 176876), (154, 138974), (242, 88438), (308, 69487), (484, 44219), (847, 25268), (1694, 12634), (3388, 6317)]