388261713

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{16493}}^1$

素因数の和:16581

約数の個数: 32

約数和(自身を含む): 633369600

約数和(自身を除く): 245107887

約数列:

[1, 3, 7, 19, 21, 57, 59, 133, 177, 399, 413, 1121, 1239, 3363, 7847, 16493, 23541, 49479, 115451, 313367, 346353, 940101, 973087, 2193569, 2919261, 6580707, 6811609, 18488653, 20434827, 55465959, 129420571, 388261713]

約数ペア:

[(1, 388261713), (3, 129420571), (7, 55465959), (19, 20434827), (21, 18488653), (57, 6811609), (59, 6580707), (133, 2919261), (177, 2193569), (399, 973087), (413, 940101), (1121, 346353), (1239, 313367), (3363, 115451), (7847, 49479), (16493, 23541)]