19562721

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{1091}}^1$

素因数の和:1276

約数の個数: 16

約数和(自身を含む): 26906880

約数和(自身を除く): 7344159

約数列:

[1, 3, 43, 129, 139, 417, 1091, 3273, 5977, 17931, 46913, 140739, 151649, 454947, 6520907, 19562721]

約数ペア:

[(1, 19562721), (3, 6520907), (43, 454947), (129, 151649), (139, 140739), (417, 46913), (1091, 17931), (3273, 5977)]