28506686

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{151}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 47573568

約数和(自身を除く): 19066882

約数列:

[1, 2, 13, 26, 53, 106, 137, 151, 274, 302, 689, 1378, 1781, 1963, 3562, 3926, 7261, 8003, 14522, 16006, 20687, 41374, 94393, 104039, 188786, 208078, 268931, 537862, 1096411, 2192822, 14253343, 28506686]

約数ペア:

[(1, 28506686), (2, 14253343), (13, 2192822), (26, 1096411), (53, 537862), (106, 268931), (137, 208078), (151, 188786), (274, 104039), (302, 94393), (689, 41374), (1378, 20687), (1781, 16006), (1963, 14522), (3562, 8003), (3926, 7261)]