21403242

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4591}}^1$

素因数の和:4643

約数の個数: 48

約数和(自身を含む): 54442752

約数和(自身を除く): 33039510

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 37, 42, 63, 74, 111, 126, 222, 259, 333, 518, 666, 777, 1554, 2331, 4591, 4662, 9182, 13773, 27546, 32137, 41319, 64274, 82638, 96411, 169867, 192822, 289233, 339734, 509601, 578466, 1019202, 1189069, 1528803, 2378138, 3057606, 3567207, 7134414, 10701621, 21403242]

約数ペア:

[(1, 21403242), (2, 10701621), (3, 7134414), (6, 3567207), (7, 3057606), (9, 2378138), (14, 1528803), (18, 1189069), (21, 1019202), (37, 578466), (42, 509601), (63, 339734), (74, 289233), (111, 192822), (126, 169867), (222, 96411), (259, 82638), (333, 64274), (518, 41319), (666, 32137), (777, 27546), (1554, 13773), (2331, 9182), (4591, 4662)]