639777621

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{417337}}^1$

素因数の和:417420

約数の個数: 16

約数和(自身を含む): 988256384

約数和(自身を除く): 348478763

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 417337, 1252011, 2921359, 8764077, 30465601, 91396803, 213259207, 639777621]

約数ペア:

[(1, 639777621), (3, 213259207), (7, 91396803), (21, 30465601), (73, 8764077), (219, 2921359), (511, 1252011), (1533, 417337)]