21494067

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{241}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 34197504

約数和(自身を除く): 12703437

約数列:

[1, 3, 7, 21, 31, 93, 137, 217, 241, 411, 651, 723, 959, 1687, 2877, 4247, 5061, 7471, 12741, 22413, 29729, 33017, 52297, 89187, 99051, 156891, 231119, 693357, 1023527, 3070581, 7164689, 21494067]

約数ペア:

[(1, 21494067), (3, 7164689), (7, 3070581), (21, 1023527), (31, 693357), (93, 231119), (137, 156891), (217, 99051), (241, 89187), (411, 52297), (651, 33017), (723, 29729), (959, 22413), (1687, 12741), (2877, 7471), (4247, 5061)]