19840443

素因数分解:

$3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{971}}^1$

素因数の和:1127

約数の個数: 24

約数和(自身を含む): 31026240

約数和(自身を除く): 11185797

約数列:

[1, 3, 7, 21, 49, 139, 147, 417, 971, 973, 2913, 2919, 6797, 6811, 20391, 20433, 47579, 134969, 142737, 404907, 944783, 2834349, 6613481, 19840443]

約数ペア:

[(1, 19840443), (3, 6613481), (7, 2834349), (21, 944783), (49, 404907), (139, 142737), (147, 134969), (417, 47579), (971, 20433), (973, 20391), (2913, 6811), (2919, 6797)]