19079865

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{509}}^1$

素因数の和:551

約数の個数: 72

約数和(自身を含む): 40814280

約数和(自身を除く): 21734415

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 49, 51, 63, 85, 105, 119, 147, 153, 245, 255, 315, 357, 441, 509, 595, 735, 765, 833, 1071, 1527, 1785, 2205, 2499, 2545, 3563, 4165, 4581, 5355, 7497, 7635, 8653, 10689, 12495, 17815, 22905, 24941, 25959, 32067, 37485, 43265, 53445, 60571, 74823, 77877, 124705, 129795, 160335, 181713, 224469, 302855, 374115, 389385, 423997, 545139, 908565, 1122345, 1271991, 2119985, 2725695, 3815973, 6359955, 19079865]

約数ペア:

[(1, 19079865), (3, 6359955), (5, 3815973), (7, 2725695), (9, 2119985), (15, 1271991), (17, 1122345), (21, 908565), (35, 545139), (45, 423997), (49, 389385), (51, 374115), (63, 302855), (85, 224469), (105, 181713), (119, 160335), (147, 129795), (153, 124705), (245, 77877), (255, 74823), (315, 60571), (357, 53445), (441, 43265), (509, 37485), (595, 32067), (735, 25959), (765, 24941), (833, 22905), (1071, 17815), (1527, 12495), (1785, 10689), (2205, 8653), (2499, 7635), (2545, 7497), (3563, 5355), (4165, 4581)]