18873855

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1$

素因数の和:461

約数の個数: 96

約数和(自身を含む): 44029440

約数和(自身を除く): 25155585

約数列:

[1, 3, 5, 7, 9, 11, 13, 15, 21, 33, 35, 39, 45, 55, 63, 65, 77, 91, 99, 105, 117, 143, 165, 195, 231, 273, 315, 385, 419, 429, 455, 495, 585, 693, 715, 819, 1001, 1155, 1257, 1287, 1365, 2095, 2145, 2933, 3003, 3465, 3771, 4095, 4609, 5005, 5447, 6285, 6435, 8799, 9009, 13827, 14665, 15015, 16341, 18855, 23045, 26397, 27235, 32263, 38129, 41481, 43995, 45045, 49023, 59917, 69135, 81705, 96789, 114387, 131985, 161315, 179751, 190645, 207405, 245115, 290367, 299585, 343161, 419419, 483945, 539253, 571935, 898755, 1258257, 1451835, 1715805, 2097095, 2696265, 3774771, 6291285, 18873855]

約数ペア:

[(1, 18873855), (3, 6291285), (5, 3774771), (7, 2696265), (9, 2097095), (11, 1715805), (13, 1451835), (15, 1258257), (21, 898755), (33, 571935), (35, 539253), (39, 483945), (45, 419419), (55, 343161), (63, 299585), (65, 290367), (77, 245115), (91, 207405), (99, 190645), (105, 179751), (117, 161315), (143, 131985), (165, 114387), (195, 96789), (231, 81705), (273, 69135), (315, 59917), (385, 49023), (419, 45045), (429, 43995), (455, 41481), (495, 38129), (585, 32263), (693, 27235), (715, 26397), (819, 23045), (1001, 18855), (1155, 16341), (1257, 15015), (1287, 14665), (1365, 13827), (2095, 9009), (2145, 8799), (2933, 6435), (3003, 6285), (3465, 5447), (3771, 5005), (4095, 4609)]