21220137315

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{437033}}^1$

素因数の和:437140

約数の個数: 48

約数和(自身を含む): 40088254752

約数和(自身を除く): 18868117437

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 83, 117, 195, 249, 415, 585, 747, 1079, 1245, 3237, 3735, 5395, 9711, 16185, 48555, 437033, 1311099, 2185165, 3933297, 5681429, 6555495, 17044287, 19666485, 28407145, 36273739, 51132861, 85221435, 108821217, 181368695, 255664305, 326463651, 471558607, 544106085, 1414675821, 1632318255, 2357793035, 4244027463, 7073379105, 21220137315]

約数ペア:

[(1, 21220137315), (3, 7073379105), (5, 4244027463), (9, 2357793035), (13, 1632318255), (15, 1414675821), (39, 544106085), (45, 471558607), (65, 326463651), (83, 255664305), (117, 181368695), (195, 108821217), (249, 85221435), (415, 51132861), (585, 36273739), (747, 28407145), (1079, 19666485), (1245, 17044287), (3237, 6555495), (3735, 5681429), (5395, 3933297), (9711, 2185165), (16185, 1311099), (48555, 437033)]