289798431

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{3797}}^1$

素因数の和:3935

約数の個数: 32

約数和(自身を含む): 442391040

約数和(自身を除く): 152592609

約数列:

[1, 3, 13, 19, 39, 57, 103, 247, 309, 741, 1339, 1957, 3797, 4017, 5871, 11391, 25441, 49361, 72143, 76323, 148083, 216429, 391091, 937859, 1173273, 2813577, 5084183, 7430729, 15252549, 22292187, 96599477, 289798431]

約数ペア:

[(1, 289798431), (3, 96599477), (13, 22292187), (19, 15252549), (39, 7430729), (57, 5084183), (103, 2813577), (247, 1173273), (309, 937859), (741, 391091), (1339, 216429), (1957, 148083), (3797, 76323), (4017, 72143), (5871, 49361), (11391, 25441)]