420097557

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 671846400

約数和(自身を除く): 251748843

約数列:

[1, 3, 11, 17, 33, 51, 53, 71, 159, 187, 199, 213, 561, 583, 597, 781, 901, 1207, 1749, 2189, 2343, 2703, 3383, 3621, 3763, 6567, 9911, 10149, 10547, 11289, 13277, 14129, 29733, 31641, 37213, 39831, 41393, 42387, 63971, 111639, 116017, 124179, 155419, 179299, 191913, 240193, 348051, 466257, 537897, 703681, 720579, 748837, 1972289, 2111043, 2246511, 2642123, 5916867, 7926369, 8237207, 12730229, 24711621, 38190687, 140032519, 420097557]

約数ペア:

[(1, 420097557), (3, 140032519), (11, 38190687), (17, 24711621), (33, 12730229), (51, 8237207), (53, 7926369), (71, 5916867), (159, 2642123), (187, 2246511), (199, 2111043), (213, 1972289), (561, 748837), (583, 720579), (597, 703681), (781, 537897), (901, 466257), (1207, 348051), (1749, 240193), (2189, 191913), (2343, 179299), (2703, 155419), (3383, 124179), (3621, 116017), (3763, 111639), (6567, 63971), (9911, 42387), (10149, 41393), (10547, 39831), (11289, 37213), (13277, 31641), (14129, 29733)]