15821217

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{349}}^1$

素因数の和:454

約数の個数: 32

約数和(自身を含む): 24864000

約数和(自身を除く): 9042783

約数列:

[1, 3, 9, 23, 27, 69, 73, 207, 219, 349, 621, 657, 1047, 1679, 1971, 3141, 5037, 8027, 9423, 15111, 24081, 25477, 45333, 72243, 76431, 216729, 229293, 585971, 687879, 1757913, 5273739, 15821217]

約数ペア:

[(1, 15821217), (3, 5273739), (9, 1757913), (23, 687879), (27, 585971), (69, 229293), (73, 216729), (207, 76431), (219, 72243), (349, 45333), (621, 25477), (657, 24081), (1047, 15111), (1679, 9423), (1971, 8027), (3141, 5037)]