20155863

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:184

約数の個数: 64

約数和(自身を含む): 36191232

約数和(自身を除く): 16035369

約数列:

[1, 3, 7, 13, 17, 21, 39, 43, 51, 91, 101, 119, 129, 221, 273, 301, 303, 357, 559, 663, 707, 731, 903, 1313, 1547, 1677, 1717, 2121, 2193, 3913, 3939, 4343, 4641, 5117, 5151, 9191, 9503, 11739, 12019, 13029, 15351, 22321, 27573, 28509, 30401, 36057, 56459, 66521, 66963, 73831, 91203, 156247, 169377, 199563, 221493, 395213, 468741, 516817, 959803, 1185639, 1550451, 2879409, 6718621, 20155863]

約数ペア:

[(1, 20155863), (3, 6718621), (7, 2879409), (13, 1550451), (17, 1185639), (21, 959803), (39, 516817), (43, 468741), (51, 395213), (91, 221493), (101, 199563), (119, 169377), (129, 156247), (221, 91203), (273, 73831), (301, 66963), (303, 66521), (357, 56459), (559, 36057), (663, 30401), (707, 28509), (731, 27573), (903, 22321), (1313, 15351), (1547, 13029), (1677, 12019), (1717, 11739), (2121, 9503), (2193, 9191), (3913, 5151), (3939, 5117), (4343, 4641)]