15957921

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{9619}}^1$

素因数の和:9708

約数の個数: 16

約数和(自身を含む): 24627200

約数和(自身を除く): 8669279

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 9619, 28857, 67333, 201999, 759901, 2279703, 5319307, 15957921]

約数ペア:

[(1, 15957921), (3, 5319307), (7, 2279703), (21, 759901), (79, 201999), (237, 67333), (553, 28857), (1659, 9619)]