21063861

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8573}}^1$

素因数の和:8602

約数の個数: 32

約数和(自身を含む): 38411520

約数和(自身を除く): 17347659

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 8573, 25719, 60011, 77157, 111449, 180033, 231471, 334347, 540099, 780143, 1003041, 1620297, 2340429, 3009123, 7021287, 21063861]

約数ペア:

[(1, 21063861), (3, 7021287), (7, 3009123), (9, 2340429), (13, 1620297), (21, 1003041), (27, 780143), (39, 540099), (63, 334347), (91, 231471), (117, 180033), (189, 111449), (273, 77157), (351, 60011), (819, 25719), (2457, 8573)]