18231675

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{41}}^1$

素因数の和:90

約数の個数: 108

約数和(自身を含む): 39481848

約数和(自身を除く): 21250173

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 41, 49, 55, 75, 77, 105, 121, 123, 147, 165, 175, 205, 231, 245, 275, 287, 363, 385, 451, 525, 539, 605, 615, 735, 825, 847, 861, 1025, 1155, 1225, 1353, 1435, 1617, 1815, 1925, 2009, 2255, 2541, 2695, 3025, 3075, 3157, 3675, 4235, 4305, 4961, 5775, 5929, 6027, 6765, 7175, 8085, 9075, 9471, 10045, 11275, 12705, 13475, 14883, 15785, 17787, 21175, 21525, 22099, 24805, 29645, 30135, 33825, 34727, 40425, 47355, 50225, 63525, 66297, 74415, 78925, 88935, 104181, 110495, 124025, 148225, 150675, 173635, 236775, 243089, 331485, 372075, 444675, 520905, 552475, 729267, 868175, 1215445, 1657425, 2604525, 3646335, 6077225, 18231675]

約数ペア:

[(1, 18231675), (3, 6077225), (5, 3646335), (7, 2604525), (11, 1657425), (15, 1215445), (21, 868175), (25, 729267), (33, 552475), (35, 520905), (41, 444675), (49, 372075), (55, 331485), (75, 243089), (77, 236775), (105, 173635), (121, 150675), (123, 148225), (147, 124025), (165, 110495), (175, 104181), (205, 88935), (231, 78925), (245, 74415), (275, 66297), (287, 63525), (363, 50225), (385, 47355), (451, 40425), (525, 34727), (539, 33825), (605, 30135), (615, 29645), (735, 24805), (825, 22099), (847, 21525), (861, 21175), (1025, 17787), (1155, 15785), (1225, 14883), (1353, 13475), (1435, 12705), (1617, 11275), (1815, 10045), (1925, 9471), (2009, 9075), (2255, 8085), (2541, 7175), (2695, 6765), (3025, 6027), (3075, 5929), (3157, 5775), (3675, 4961), (4235, 4305)]