405147393

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{439}}^1$

素因数の和:731

約数の個数: 64

約数和(自身を含む): 726528000

約数和(自身を除く): 321380607

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 257, 399, 439, 513, 771, 1197, 1317, 1799, 2313, 3073, 3591, 3951, 4883, 5397, 6939, 8341, 9219, 11853, 14649, 16191, 25023, 27657, 34181, 43947, 48573, 58387, 75069, 82971, 102543, 112823, 131841, 175161, 225207, 307629, 338469, 525483, 789761, 922887, 1015407, 1576449, 2143637, 2369283, 3046221, 6430911, 7107849, 15005459, 19292733, 21323547, 45016377, 57878199, 135049131, 405147393]

約数ペア:

[(1, 405147393), (3, 135049131), (7, 57878199), (9, 45016377), (19, 21323547), (21, 19292733), (27, 15005459), (57, 7107849), (63, 6430911), (133, 3046221), (171, 2369283), (189, 2143637), (257, 1576449), (399, 1015407), (439, 922887), (513, 789761), (771, 525483), (1197, 338469), (1317, 307629), (1799, 225207), (2313, 175161), (3073, 131841), (3591, 112823), (3951, 102543), (4883, 82971), (5397, 75069), (6939, 58387), (8341, 48573), (9219, 43947), (11853, 34181), (14649, 27657), (16191, 25023)]