216978516

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{140167}}^1$

素因数の和:140220

約数の個数: 36

約数和(自身を含む): 561232672

約数和(自身を除く): 344254156

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 140167, 280334, 420501, 560668, 841002, 1261503, 1682004, 2523006, 5046012, 6027181, 12054362, 18081543, 24108724, 36163086, 54244629, 72326172, 108489258, 216978516]

約数ペア:

[(1, 216978516), (2, 108489258), (3, 72326172), (4, 54244629), (6, 36163086), (9, 24108724), (12, 18081543), (18, 12054362), (36, 6027181), (43, 5046012), (86, 2523006), (129, 1682004), (172, 1261503), (258, 841002), (387, 560668), (516, 420501), (774, 280334), (1548, 140167)]