31917321

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 52183040

約数和(自身を除く): 20265719

約数列:

[1, 3, 9, 19, 27, 31, 57, 81, 93, 171, 223, 243, 279, 513, 589, 669, 837, 1539, 1767, 2007, 2511, 4237, 4617, 5301, 6021, 6913, 7533, 12711, 15903, 18063, 20739, 38133, 47709, 54189, 62217, 114399, 131347, 143127, 186651, 343197, 394041, 559953, 1029591, 1182123, 1679859, 3546369, 10639107, 31917321]

約数ペア:

[(1, 31917321), (3, 10639107), (9, 3546369), (19, 1679859), (27, 1182123), (31, 1029591), (57, 559953), (81, 394041), (93, 343197), (171, 186651), (223, 143127), (243, 131347), (279, 114399), (513, 62217), (589, 54189), (669, 47709), (837, 38133), (1539, 20739), (1767, 18063), (2007, 15903), (2511, 12711), (4237, 7533), (4617, 6913), (5301, 6021)]