21488730865

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{313727}}^1$

素因数の和:313861

約数の個数: 32

約数和(自身を含む): 31322603520

約数和(自身を除く): 9833872655

約数列:

[1, 5, 7, 19, 35, 95, 103, 133, 515, 665, 721, 1957, 3605, 9785, 13699, 68495, 313727, 1568635, 2196089, 5960813, 10980445, 29804065, 32313881, 41725691, 161569405, 208628455, 226197167, 613963739, 1130985835, 3069818695, 4297746173, 21488730865]

約数ペア:

[(1, 21488730865), (5, 4297746173), (7, 3069818695), (19, 1130985835), (35, 613963739), (95, 226197167), (103, 208628455), (133, 161569405), (515, 41725691), (665, 32313881), (721, 29804065), (1957, 10980445), (3605, 5960813), (9785, 2196089), (13699, 1568635), (68495, 313727)]