28212639

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6079}}^1$

素因数の和:6119

約数の個数: 32

約数和(自身を含む): 49029120

約数和(自身を除く): 20816481

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 663, 1547, 4641, 6079, 18237, 42553, 79027, 103343, 127659, 237081, 310029, 553189, 723401, 1343459, 1659567, 2170203, 4030377, 9404213, 28212639]

約数ペア:

[(1, 28212639), (3, 9404213), (7, 4030377), (13, 2170203), (17, 1659567), (21, 1343459), (39, 723401), (51, 553189), (91, 310029), (119, 237081), (221, 127659), (273, 103343), (357, 79027), (663, 42553), (1547, 18237), (4641, 6079)]