18986355

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^2\times {\mathrm{191}}^1$

素因数の和:296

約数の個数: 36

約数和(自身を含む): 33800832

約数和(自身を除く): 14814477

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 191, 235, 423, 573, 705, 955, 1719, 2115, 2209, 2865, 6627, 8595, 8977, 11045, 19881, 26931, 33135, 44885, 80793, 99405, 134655, 403965, 421919, 1265757, 2109595, 3797271, 6328785, 18986355]

約数ペア:

[(1, 18986355), (3, 6328785), (5, 3797271), (9, 2109595), (15, 1265757), (45, 421919), (47, 403965), (141, 134655), (191, 99405), (235, 80793), (423, 44885), (573, 33135), (705, 26931), (955, 19881), (1719, 11045), (2115, 8977), (2209, 8595), (2865, 6627)]