18307905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{131}}^1$

素因数の和:179

約数の個数: 64

約数和(自身を含む): 37103616

約数和(自身を除く): 18795711

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 121, 131, 165, 231, 363, 385, 393, 605, 655, 847, 917, 1155, 1331, 1441, 1815, 1965, 2541, 2751, 3993, 4235, 4323, 4585, 6655, 7205, 9317, 10087, 12705, 13755, 15851, 19965, 21615, 27951, 30261, 46585, 47553, 50435, 79255, 110957, 139755, 151305, 174361, 237765, 332871, 523083, 554785, 871805, 1220527, 1664355, 2615415, 3661581, 6102635, 18307905]

約数ペア:

[(1, 18307905), (3, 6102635), (5, 3661581), (7, 2615415), (11, 1664355), (15, 1220527), (21, 871805), (33, 554785), (35, 523083), (55, 332871), (77, 237765), (105, 174361), (121, 151305), (131, 139755), (165, 110957), (231, 79255), (363, 50435), (385, 47553), (393, 46585), (605, 30261), (655, 27951), (847, 21615), (917, 19965), (1155, 15851), (1331, 13755), (1441, 12705), (1815, 10087), (1965, 9317), (2541, 7205), (2751, 6655), (3993, 4585), (4235, 4323)]