18765285

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{211}}^1$

素因数の和:255

約数の個数: 72

約数和(自身を含む): 38572128

約数和(自身を除く): 19806843

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 49, 55, 77, 105, 121, 147, 165, 211, 231, 245, 363, 385, 539, 605, 633, 735, 847, 1055, 1155, 1477, 1617, 1815, 2321, 2541, 2695, 3165, 4235, 4431, 5929, 6963, 7385, 8085, 10339, 11605, 12705, 16247, 17787, 22155, 25531, 29645, 31017, 34815, 48741, 51695, 76593, 81235, 88935, 113729, 127655, 155085, 178717, 243705, 341187, 382965, 536151, 568645, 893585, 1251019, 1705935, 2680755, 3753057, 6255095, 18765285]

約数ペア:

[(1, 18765285), (3, 6255095), (5, 3753057), (7, 2680755), (11, 1705935), (15, 1251019), (21, 893585), (33, 568645), (35, 536151), (49, 382965), (55, 341187), (77, 243705), (105, 178717), (121, 155085), (147, 127655), (165, 113729), (211, 88935), (231, 81235), (245, 76593), (363, 51695), (385, 48741), (539, 34815), (605, 31017), (633, 29645), (735, 25531), (847, 22155), (1055, 17787), (1155, 16247), (1477, 12705), (1617, 11605), (1815, 10339), (2321, 8085), (2541, 7385), (2695, 6963), (3165, 5929), (4235, 4431)]