16581159

素因数分解:

$3^3\times 7^2\times {\mathrm{83}}^1\times {\mathrm{151}}^1$

素因数の和:257

約数の個数: 48

約数和(自身を含む): 29111040

約数和(自身を除く): 12529881

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 83, 147, 151, 189, 249, 441, 453, 581, 747, 1057, 1323, 1359, 1743, 2241, 3171, 4067, 4077, 5229, 7399, 9513, 12201, 12533, 15687, 22197, 28539, 36603, 37599, 66591, 87731, 109809, 112797, 199773, 263193, 338391, 614117, 789579, 1842351, 2368737, 5527053, 16581159]

約数ペア:

[(1, 16581159), (3, 5527053), (7, 2368737), (9, 1842351), (21, 789579), (27, 614117), (49, 338391), (63, 263193), (83, 199773), (147, 112797), (151, 109809), (189, 87731), (249, 66591), (441, 37599), (453, 36603), (581, 28539), (747, 22197), (1057, 15687), (1323, 12533), (1359, 12201), (1743, 9513), (2241, 7399), (3171, 5229), (4067, 4077)]