28648287

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{419}}^1$

素因数の和:603

約数の個数: 24

約数和(自身を含む): 42456960

約数和(自身を除く): 13808673

約数列:

[1, 3, 9, 71, 107, 213, 321, 419, 639, 963, 1257, 3771, 7597, 22791, 29749, 44833, 68373, 89247, 134499, 267741, 403497, 3183143, 9549429, 28648287]

約数ペア:

[(1, 28648287), (3, 9549429), (9, 3183143), (71, 403497), (107, 267741), (213, 134499), (321, 89247), (419, 68373), (639, 44833), (963, 29749), (1257, 22791), (3771, 7597)]