18205215

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:117

約数の個数: 96

約数和(自身を含む): 37822464

約数和(自身を除く): 19617249

約数列:

[1, 3, 5, 7, 15, 17, 21, 31, 35, 47, 49, 51, 85, 93, 105, 119, 141, 147, 155, 217, 235, 245, 255, 329, 357, 465, 527, 595, 651, 705, 735, 799, 833, 987, 1085, 1457, 1519, 1581, 1645, 1785, 2303, 2397, 2499, 2635, 3255, 3689, 3995, 4165, 4371, 4557, 4935, 5593, 6909, 7285, 7595, 7905, 10199, 11067, 11515, 11985, 12495, 16779, 18445, 21855, 22785, 24769, 25823, 27965, 30597, 34545, 39151, 50995, 55335, 71393, 74307, 77469, 83895, 117453, 123845, 129115, 152985, 173383, 195755, 214179, 356965, 371535, 387345, 520149, 587265, 866915, 1070895, 1213681, 2600745, 3641043, 6068405, 18205215]

約数ペア:

[(1, 18205215), (3, 6068405), (5, 3641043), (7, 2600745), (15, 1213681), (17, 1070895), (21, 866915), (31, 587265), (35, 520149), (47, 387345), (49, 371535), (51, 356965), (85, 214179), (93, 195755), (105, 173383), (119, 152985), (141, 129115), (147, 123845), (155, 117453), (217, 83895), (235, 77469), (245, 74307), (255, 71393), (329, 55335), (357, 50995), (465, 39151), (527, 34545), (595, 30597), (651, 27965), (705, 25823), (735, 24769), (799, 22785), (833, 21855), (987, 18445), (1085, 16779), (1457, 12495), (1519, 11985), (1581, 11515), (1645, 11067), (1785, 10199), (2303, 7905), (2397, 7595), (2499, 7285), (2635, 6909), (3255, 5593), (3689, 4935), (3995, 4557), (4165, 4371)]