20374347

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 34670592

約数和(自身を除く): 14296245

約数列:

[1, 3, 7, 17, 21, 31, 49, 51, 93, 119, 147, 217, 263, 357, 527, 651, 789, 833, 1519, 1581, 1841, 2499, 3689, 4471, 4557, 5523, 8153, 11067, 12887, 13413, 24459, 25823, 31297, 38661, 57071, 77469, 93891, 138601, 171213, 219079, 399497, 415803, 657237, 970207, 1198491, 2910621, 6791449, 20374347]

約数ペア:

[(1, 20374347), (3, 6791449), (7, 2910621), (17, 1198491), (21, 970207), (31, 657237), (49, 415803), (51, 399497), (93, 219079), (119, 171213), (147, 138601), (217, 93891), (263, 77469), (357, 57071), (527, 38661), (651, 31297), (789, 25823), (833, 24459), (1519, 13413), (1581, 12887), (1841, 11067), (2499, 8153), (3689, 5523), (4471, 4557)]