21252492

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{13729}}^1$

素因数の和:13782

約数の個数: 36

約数和(自身を含む): 54974920

約数和(自身を除く): 33722428

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 13729, 27458, 41187, 54916, 82374, 123561, 164748, 247122, 494244, 590347, 1180694, 1771041, 2361388, 3542082, 5313123, 7084164, 10626246, 21252492]

約数ペア:

[(1, 21252492), (2, 10626246), (3, 7084164), (4, 5313123), (6, 3542082), (9, 2361388), (12, 1771041), (18, 1180694), (36, 590347), (43, 494244), (86, 247122), (129, 164748), (172, 123561), (258, 82374), (387, 54916), (516, 41187), (774, 27458), (1548, 13729)]