15661247

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{431}}^1$

素因数の和:646

約数の個数: 16

約数和(自身を含む): 18662400

約数和(自身を除く): 3001153

約数列:

[1, 7, 29, 179, 203, 431, 1253, 3017, 5191, 12499, 36337, 77149, 87493, 540043, 2237321, 15661247]

約数ペア:

[(1, 15661247), (7, 2237321), (29, 540043), (179, 87493), (203, 77149), (431, 36337), (1253, 12499), (3017, 5191)]