210178269

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1\times {\mathrm{241}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 354365440

約数和(自身を除く): 144187171

約数列:

[1, 3, 7, 9, 21, 63, 109, 127, 241, 327, 381, 723, 763, 889, 981, 1143, 1687, 2169, 2289, 2667, 5061, 6867, 8001, 13843, 15183, 26269, 30607, 41529, 78807, 91821, 96901, 124587, 183883, 214249, 236421, 275463, 290703, 551649, 642747, 872109, 1654947, 1928241, 3336163, 10008489, 23353141, 30025467, 70059423, 210178269]

約数ペア:

[(1, 210178269), (3, 70059423), (7, 30025467), (9, 23353141), (21, 10008489), (63, 3336163), (109, 1928241), (127, 1654947), (241, 872109), (327, 642747), (381, 551649), (723, 290703), (763, 275463), (889, 236421), (981, 214249), (1143, 183883), (1687, 124587), (2169, 96901), (2289, 91821), (2667, 78807), (5061, 41529), (6867, 30607), (8001, 26269), (13843, 15183)]