21306285

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:96

約数の個数: 144

約数和(自身を含む): 51123072

約数和(自身を除く): 29816787

約数列:

[1, 3, 5, 7, 9, 11, 13, 15, 21, 33, 35, 39, 43, 45, 55, 63, 65, 77, 91, 99, 105, 117, 121, 129, 143, 165, 195, 215, 231, 273, 301, 315, 363, 385, 387, 429, 455, 473, 495, 559, 585, 605, 645, 693, 715, 819, 847, 903, 1001, 1089, 1155, 1287, 1365, 1419, 1505, 1573, 1677, 1815, 1935, 2145, 2365, 2541, 2709, 2795, 3003, 3311, 3465, 3913, 4095, 4235, 4257, 4515, 4719, 5005, 5031, 5203, 5445, 6149, 6435, 7095, 7623, 7865, 8385, 9009, 9933, 11011, 11739, 12705, 13545, 14157, 15015, 15609, 16555, 18447, 19565, 21285, 23595, 25155, 26015, 29799, 30745, 33033, 35217, 36421, 38115, 43043, 45045, 46827, 49665, 55055, 55341, 58695, 67639, 70785, 78045, 92235, 99099, 109263, 129129, 148995, 165165, 176085, 182105, 202917, 215215, 234135, 276705, 327789, 338195, 387387, 473473, 495495, 546315, 608751, 645645, 1014585, 1420419, 1638945, 1936935, 2367365, 3043755, 4261257, 7102095, 21306285]

約数ペア:

[(1, 21306285), (3, 7102095), (5, 4261257), (7, 3043755), (9, 2367365), (11, 1936935), (13, 1638945), (15, 1420419), (21, 1014585), (33, 645645), (35, 608751), (39, 546315), (43, 495495), (45, 473473), (55, 387387), (63, 338195), (65, 327789), (77, 276705), (91, 234135), (99, 215215), (105, 202917), (117, 182105), (121, 176085), (129, 165165), (143, 148995), (165, 129129), (195, 109263), (215, 99099), (231, 92235), (273, 78045), (301, 70785), (315, 67639), (363, 58695), (385, 55341), (387, 55055), (429, 49665), (455, 46827), (473, 45045), (495, 43043), (559, 38115), (585, 36421), (605, 35217), (645, 33033), (693, 30745), (715, 29799), (819, 26015), (847, 25155), (903, 23595), (1001, 21285), (1089, 19565), (1155, 18447), (1287, 16555), (1365, 15609), (1419, 15015), (1505, 14157), (1573, 13545), (1677, 12705), (1815, 11739), (1935, 11011), (2145, 9933), (2365, 9009), (2541, 8385), (2709, 7865), (2795, 7623), (3003, 7095), (3311, 6435), (3465, 6149), (3913, 5445), (4095, 5203), (4235, 5031), (4257, 5005), (4515, 4719)]