1640751

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:155

約数の個数: 32

約数和(自身を含む): 2703360

約数和(自身を除く): 1062609

約数列:

[1, 3, 7, 21, 23, 43, 69, 79, 129, 161, 237, 301, 483, 553, 903, 989, 1659, 1817, 2967, 3397, 5451, 6923, 10191, 12719, 20769, 23779, 38157, 71337, 78131, 234393, 546917, 1640751]

約数ペア:

[(1, 1640751), (3, 546917), (7, 234393), (21, 78131), (23, 71337), (43, 38157), (69, 23779), (79, 20769), (129, 12719), (161, 10191), (237, 6923), (301, 5451), (483, 3397), (553, 2967), (903, 1817), (989, 1659)]