21662025

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^3\times {\mathrm{31}}^1$

素因数の和:84

約数の個数: 96

約数和(自身を含む): 46473216

約数和(自身を除く): 24811191

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 31, 33, 35, 55, 75, 77, 93, 105, 121, 155, 165, 175, 217, 231, 275, 341, 363, 385, 465, 525, 605, 651, 775, 825, 847, 1023, 1085, 1155, 1331, 1705, 1815, 1925, 2325, 2387, 2541, 3025, 3255, 3751, 3993, 4235, 5115, 5425, 5775, 6655, 7161, 8525, 9075, 9317, 11253, 11935, 12705, 16275, 18755, 19965, 21175, 25575, 26257, 27951, 33275, 35805, 41261, 46585, 56265, 59675, 63525, 78771, 93775, 99825, 123783, 131285, 139755, 179025, 206305, 232925, 281325, 288827, 393855, 618915, 656425, 698775, 866481, 1031525, 1444135, 1969275, 3094575, 4332405, 7220675, 21662025]

約数ペア:

[(1, 21662025), (3, 7220675), (5, 4332405), (7, 3094575), (11, 1969275), (15, 1444135), (21, 1031525), (25, 866481), (31, 698775), (33, 656425), (35, 618915), (55, 393855), (75, 288827), (77, 281325), (93, 232925), (105, 206305), (121, 179025), (155, 139755), (165, 131285), (175, 123783), (217, 99825), (231, 93775), (275, 78771), (341, 63525), (363, 59675), (385, 56265), (465, 46585), (525, 41261), (605, 35805), (651, 33275), (775, 27951), (825, 26257), (847, 25575), (1023, 21175), (1085, 19965), (1155, 18755), (1331, 16275), (1705, 12705), (1815, 11935), (1925, 11253), (2325, 9317), (2387, 9075), (2541, 8525), (3025, 7161), (3255, 6655), (3751, 5775), (3993, 5425), (4235, 5115)]