19943385

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{557}}^1$

素因数の和:614

約数の個数: 64

約数和(自身を含む): 41140224

約数和(自身を除く): 21196839

約数列:

[1, 3, 5, 7, 11, 15, 21, 31, 33, 35, 55, 77, 93, 105, 155, 165, 217, 231, 341, 385, 465, 557, 651, 1023, 1085, 1155, 1671, 1705, 2387, 2785, 3255, 3899, 5115, 6127, 7161, 8355, 11697, 11935, 17267, 18381, 19495, 30635, 35805, 42889, 51801, 58485, 86335, 91905, 120869, 128667, 189937, 214445, 259005, 362607, 569811, 604345, 643335, 949685, 1329559, 1813035, 2849055, 3988677, 6647795, 19943385]

約数ペア:

[(1, 19943385), (3, 6647795), (5, 3988677), (7, 2849055), (11, 1813035), (15, 1329559), (21, 949685), (31, 643335), (33, 604345), (35, 569811), (55, 362607), (77, 259005), (93, 214445), (105, 189937), (155, 128667), (165, 120869), (217, 91905), (231, 86335), (341, 58485), (385, 51801), (465, 42889), (557, 35805), (651, 30635), (1023, 19495), (1085, 18381), (1155, 17267), (1671, 11935), (1705, 11697), (2387, 8355), (2785, 7161), (3255, 6127), (3899, 5115)]