21458898

素因数分解:

$2^1\times 3^3\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:304

約数の個数: 64

約数和(自身を含む): 50284800

約数和(自身を除く): 28825902

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 54, 58, 71, 87, 142, 174, 193, 213, 261, 386, 426, 522, 579, 639, 783, 1158, 1278, 1566, 1737, 1917, 2059, 3474, 3834, 4118, 5211, 5597, 6177, 10422, 11194, 12354, 13703, 16791, 18531, 27406, 33582, 37062, 41109, 50373, 55593, 82218, 100746, 111186, 123327, 151119, 246654, 302238, 369981, 397387, 739962, 794774, 1192161, 2384322, 3576483, 7152966, 10729449, 21458898]

約数ペア:

[(1, 21458898), (2, 10729449), (3, 7152966), (6, 3576483), (9, 2384322), (18, 1192161), (27, 794774), (29, 739962), (54, 397387), (58, 369981), (71, 302238), (87, 246654), (142, 151119), (174, 123327), (193, 111186), (213, 100746), (261, 82218), (386, 55593), (426, 50373), (522, 41109), (579, 37062), (639, 33582), (783, 27406), (1158, 18531), (1278, 16791), (1566, 13703), (1737, 12354), (1917, 11194), (2059, 10422), (3474, 6177), (3834, 5597), (4118, 5211)]