821541

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:129

約数の個数: 32

約数和(自身を含む): 1382400

約数和(自身を除く): 560859

約数列:

[1, 3, 7, 19, 21, 29, 57, 71, 87, 133, 203, 213, 399, 497, 551, 609, 1349, 1491, 1653, 2059, 3857, 4047, 6177, 9443, 11571, 14413, 28329, 39121, 43239, 117363, 273847, 821541]

約数ペア:

[(1, 821541), (3, 273847), (7, 117363), (19, 43239), (21, 39121), (29, 28329), (57, 14413), (71, 11571), (87, 9443), (133, 6177), (203, 4047), (213, 3857), (399, 2059), (497, 1653), (551, 1491), (609, 1349)]